<PAGE>   1
 
================================================================================
 
                                 UNITED STATES
 
                       SECURITIES AND EXCHANGE COMMISSION
 
                             WASHINGTON, D.C. 20549
 
                                   FORM 10-Q
(MARK ONE)
 
[X]  QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934
 
FOR THE QUARTERLY PERIOD ENDED                   JUNE 30, 1997
                                 ---------------------------------------------

                                       OR
 
[ ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934
 
FOR THE TRANSITION PERIOD FROM                        TO
                                ---------------------     -------------------- 

COMMISSION FILE NO. 2-92121

 
                       DEL TACO RESTAURANT PROPERTIES II
                        A CALIFORNIA LIMITED PARTNERSHIP
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
<TABLE>
<S>                                                          <C>
                         CALIFORNIA                                    33-0064245
               (STATE OR OTHER JURISDICTION OF                      (I.R.S. EMPLOYER
               INCORPORATION OR ORGANIZATION)                      IDENTIFICATION NO.)
 
    23041 AVENIDA DE LA CARLOTA, LAGUNA HILLS, CALIFORNIA                 92653
          (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                     (ZIP CODE)
</TABLE>
 
                                 (714) 462-9300
              (REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE)
 
     INDICATE BY CHECK MARK WHETHER THE REGISTRANT (1) HAS FILED ALL REPORTS
REQUIRED TO BE FILED BY SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF
1934 DURING THE PRECEDING 12 MONTHS (OR FOR SUCH SHORTER PERIOD THAT THE
REGISTRANT WAS REQUIRED TO FILE SUCH REPORTS), AND (2) HAS BEEN SUBJECT TO SUCH
FILING REQUIREMENTS FOR THE PAST 90 DAYS.  YES  X   NO  ___
 
================================================================================
<PAGE>   2
                                      INDEX

                        DEL TACO RESTAURANT PROPERTIES II
                        ---------------------------------

<TABLE>
<CAPTION>
PART I.  FINANCIAL INFORMATION                                 PAGE NUMBER
------------------------------                                 -----------
<S>                                                             <C>
Item 1.  Financial Statements and Supplementary Data


Balance Sheets at June 30, 1997 (Unaudited) and
     December 31, 1996                                              3

Statements of Income for the three and six months ended
     June 30, 1997 and 1996 (Unaudited)                             4

Statements of Cash Flows for the six months ended
     June 30, 1997 and 1996 (Unaudited)                             5

Notes to Financial Statements                                       6


Item 2.  Management's Discussion and Analysis of
         Financial Condition and Results of Operations              9


PART II. OTHER INFORMATION

Item 6.  Exhibits and Reports on Form 8-K                          11


SIGNATURES                                                         12

</TABLE>





                                      -2-


<PAGE>   3





                        DEL TACO RESTAURANT PROPERTIES II
                        ---------------------------------
                                 BALANCE SHEETS
                                 --------------

<TABLE>
<CAPTION>

                                                    JUNE 30,         December 31,
                                                      1997               1996
                                                  -----------        ------------
                                                  (UNAUDITED)
                                     ASSETS
                                     ------
<S>                                                <C>                <C>       
CURRENT ASSETS:
  Cash                                             $  106,429         $  117,357
  Receivable from General Partner (Note 4)             38,012             37,271
  Deposits                                              1,000              1,000
                                                   ----------         ----------
    Total current assets                              145,441            155,628
                                                   ----------         ----------

PROPERTY AND EQUIPMENT, AT COST
  Land and improvements                             1,806,006          1,806,006
  Buildings and improvements                        1,238,879          1,238,879
  Machinery and equipment                             898,950            898,950
                                                   ----------         ----------
                                                    3,943,835          3,943,835
  Less--accumulated depreciation                    1,472,797          1,400,759
                                                   ----------         ----------
                                                    2,471,038          2,543,076
                                                   ----------         ----------

                                                   $2,616,479         $2,698,704
                                                   ==========         ==========


                        LIABILITIES AND PARTNERS' EQUITY
                        --------------------------------

CURRENT LIABILITIES:
  Payable to Limited Partners                           4,938              5,047
  Accounts Payable                                      2,521              3,000
                                                   ----------         ----------
    Total current liabilities                           7,459              8,047
                                                   ----------         ----------

PARTNERS' EQUITY
  Limited Partners                                  2,631,980          2,712,800
  General Partner-Del Taco, Inc.                      (22,960)           (22,143)
                                                   ----------         ----------
                                                    2,609,020          2,690,657
                                                   ----------         ----------

                                                   $2,616,479         $2,698,704
                                                   ==========         ==========
</TABLE>



                          The accompanying notes are an
                   integral part of these financial statements


                                      -3-


<PAGE>   4


                        DEL TACO RESTAURANT PROPERTIES II
                        ---------------------------------
                              STATEMENTS OF INCOME
                              --------------------
                                   (UNAUDITED)
                                   -----------

<TABLE>
<CAPTION>

                                        THREE MONTHS ENDED                 SIX MONTHS ENDED
                                             JUNE 30                            JUNE 30
                                       1997             1996            1997              1996
                                     --------         --------        --------          --------
<S>                                 <C>              <C>              <C>              <C>     
REVENUES:
  Rent (Notes 3 and 4)               $112,498         $106,780         $216,665         $205,018
  Interest                                642              377            1,572              973
  Other                                   175              215              250              390
                                     --------         --------         --------         --------
                                     $113,315         $107,372         $218,487         $206,381
                                     --------         --------         --------         --------

EXPENSES:
  General and administrative            9,523           11,726           31,417           32,008
  Depreciation                         36,019           36,018           72,038           72,037
                                     --------         --------         --------         --------
                                       45,542           47,744          103,455          104,045
                                     --------         --------         --------         --------

Net income                           $ 67,773         $ 59,628         $115,032         $102,336
                                     ========         ========         ========         ========

Net income per Limited
  Partnership Unit (Note 2)          $   2.48         $   2.18         $   4.22         $   3.75
                                     ========         ========         ========         ========


</TABLE>








                          The accompanying notes are an
                  integral part of these financial statements.



                                      -4-


<PAGE>   5

                        DEL TACO RESTAURANT PROPERTIES II
                        ---------------------------------
                            STATEMENTS OF CASH FLOWS
                            ------------------------
                                   (UNAUDITED)
                                   -----------


<TABLE>
<CAPTION>
                                                                 SIX MONTHS ENDED
                                                                      JUNE 30
                                                             1997                1996
                                                           ---------          ---------
<S>                                                        <C>                <C>      
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income                                                 $ 115,032          $ 102,336
Adjustments to reconcile net income to net
 cash provided by operating activities:
      Depreciation72,038                                      72,037
      Increase (decrease) in payable to
       Limited Partner                                          (109)             1,976
      Increase in receivable from
       General Partner                                          (741)               (32)
      Decrease in accounts payable                              (479)            (1,050)
                                                           ---------          ---------

         Net cash provided by operating activities           185,741            175,267

CASH FLOWS FROM FINANCING ACTIVITIES:

      Cash distributions to partners                        (196,669)          (195,714)
                                                           ---------          ---------

Net decrease in cash                                         (10,928)           (20,447)

Beginning cash balance                                       117,357            108,954
                                                           ---------          ---------

Ending cash balance                                        $ 106,429          $  88,507
                                                           =========          =========

</TABLE>








                          The accompanying notes are an
                  integral part of these financial statements.


                                      -5-



<PAGE>   6


                        DEL TACO RESTAURANT PROPERTIES II
                        ---------------------------------
                          NOTES TO FINANCIAL STATEMENTS
                          -----------------------------
                                  JUNE 30, 1997
                                  -------------

NOTE 1 - BASIS OF PRESENTATION

The accompanying financial statements, some of which are unaudited, have been
prepared in accordance with generally accepted accounting principles for interim
financial information and with the instructions to Form 10-Q and Article 10 of
Regulation S-X. Accordingly, they do not include all of the information and
footnotes required by generally accepted accounting principles for complete
financial statements and should therefore be read in conjunction with the
financial statements and notes thereto contained in the Registrant's annual
report on Form 10-K for the year ended December 31, 1996. In the opinion of
management, all adjustments (consisting of normal recurring accruals) necessary
to present fairly the partnership's financial position at June 30, 1997, the
results of operations and cash flows for the six month periods ended June 30,
1997 and 1996 have been included. Operating results for the three and six months
ended June 30, 1997 are not necessarily indicative of the results that may be
expected for the year ending December 31, 1997.

In fiscal 1996, the Registrant adopted Statement of Financial Accounting
Standards (SFAS) No. 121, "Accounting for the Impairment of Long Lived Assets
and for Long Lived Assets to be Disposed of." SFAS 121 requires that long-lived
assets be reviewed for impairment whenever events or changes in circumstances
indicate that the carrying value of the asset may not be recoverable. In
evaluating long-lived assets held for use, an impairment loss is recognized if
the sum of the expected future cash flows (undiscounted and without interest
charges) is less than the carrying value of the asset. Once a determination has
been made that an impairment loss should be recognized for long-lived assets,
various assumptions and estimates are used to determine fair value including,
among others, estimated costs of construction and development, recent sales of
comparable properties and the opinions of fair value prepared by independent
real estate appraisers. Long-lived assets to be disposed of are reported at the
lower of carrying amount of fair value less cost to sell.

The adoption of SFAS No. 121 did not have a material effect on the Registrant's
financial statements.

NOTE 2 - NET INCOME PER LIMITED PARTNERSHIP UNIT

Net income per Limited Partnership Unit is based upon the weighted average
number of Units outstanding during the periods presented which amounted to
27,006 in 1997 and 1996.



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<PAGE>   7


                        DEL TACO RESTAURANT PROPERTIES II
                        ---------------------------------
                    NOTES TO FINANCIAL STATEMENTS - CONTINUED
                    -----------------------------------------
                                  JUNE 30, 1997
                                  -------------


NOTE 2 - NET INCOME PER LIMITED PARTNERSHIP UNIT - (CONTINUED)

Pursuant to the Partnership Agreement, annual partnership income or loss is
allocated one percent to the General Partner and 99 percent to the Limited
Partners. Partnership gains from any sale or refinancing will be allocated one
percent to the General Partner and 99 percent to the Limited Partners until
allocated gains and profits equal losses, distributions and syndication costs
previously allocated. Additional gains will be allocated 15 percent to the
General Partner and 85 percent to the Limited Partners.

NOTE 3 - LEASING ACTIVITIES

The Registrant leases (the "Leases") certain properties (the "Properties") for
operation of restaurants to Del Taco, Inc. ("General Partner") on a triple net
basis. The Leases are for terms of 35 years commencing with the completion of
the restaurant facility located on each Property and require monthly rentals
equal to 12 percent of the gross sales of the restaurants. There is no minimum
rental under any of the Leases. The Registrant had a total of five Properties
leased as of June 30, 1997 and 1996.

For the three months ended June 30, 1997, the five restaurants operated by Del
Taco, for which the Registrant is the lessor, had combined, unaudited sales of
$937,483 and net income of $38,972 as compared to $889,833 and $30,519
respectively, for the corresponding period in 1996. Net income by restaurant
includes charges for general and administrative expenses incurred in connection
with supervision of restaurant operations and interest expense.

For the six months ended June 30, 1997, the five restaurants operated by Del
Taco, for which the Registrant is the lessor, had combined, unaudited sales of
$1,805,542 and net income of $80,473 as compared to $1,708,483 and $50,345
respectively, for the corresponding period in 1996. For the three months and six
months ended June 30, 1997, the Clay Street restaurant in Riverside, California
reported net income of $743 and net loss $1,282 as compared to net losses of
$1,992 and $4,210 respectively, for the corresponding period in 1996.

NOTE 4 - TRANSACTIONS WITH DEL TACO

The receivable from General Partner consists primarily of rent accrued for the
month of June. The June rent was collected on July 10, 1997.



                                      -7-

<PAGE>   8


                        DEL TACO RESTAURANT PROPERTIES II
                        ---------------------------------
                    NOTES TO FINANCIAL STATEMENTS - CONTINUED
                    -----------------------------------------
                                  JUNE 30, 1997
                                  -------------


NOTE 4 - TRANSACTIONS WITH DEL TACO - (CONTINUED)

Del Taco, Inc. serves in the capacity of general partner in other partnerships
which are engaged in the business of operating restaurants and four partnerships
which were formed for the purpose of acquiring real property in California for
construction of Mexican-American restaurants for lease under long-term
agreements to Del Taco, Inc. for operation under the Del Taco trade name.

In addition, see Note 5 with respect to certain distributions to the General
Partner.

NOTE 5 - DISTRIBUTIONS

On July 12, 1997, a distribution to the Limited Partners of $95,526 or
approximately $3.54 per Limited Partnership Unit, was approved. Such
distribution was paid on July 23, 1997. The General Partner also received a
distribution of $965 with respect to its 1% partnership interest.







                                      -8-

<PAGE>   9


ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
         AND RESULTS OF OPERATIONS

Liquidity and Capital Resources
-------------------------------

The Registrant commenced offering of Limited Partnership Units on September 11,
1984. By December 31, 1985, the sale of such Units provided a total
capitalization for the Registrant of $6,751,500. Fifteen percent of the cash
received from the sale of Limited Partnership Units was used to pay commissions
to brokers and to reimburse the General Partner for offering costs incurred. The
remaining funds were expended for the acquisition of sites and construction of
seven restaurants. In June 1986, the first two restaurants opened for business.
Four additional restaurants opened in 1987, and the seventh restaurant opened in
April of 1988. Approximately $5,600,000 was expended for such purposes. Two
restaurants were sold in 1994.

Since the restaurants owned by the Registrant commenced operation, cash flow
from Lease payments received from Del Taco, the Registrant's General Partner,
which leases all five remaining restaurants, has provided adequate liquidity for
operation of the Registrant. However, the Registrant's overwhelmingly
predominant source of income to meet its expenses and fund distributions to its
Limited Partners is payments from Del Taco under the Leases, comprising
primarily rent calculated on the basis of the gross sales of the restaurants
operated on the Properties, as to which there are no contractually specified
minimum or guaranteed amounts. Thus, the adequacy of the Registrant's liquidity
and capital resources in the future will depend primarily upon the gross
revenues of such restaurants as well as upon Del Taco's financial condition and
results of operations generally.

Results of Operations
---------------------

The Registrant owned seven Properties that were under long-term lease to Del
Taco for restaurant operations. Two restaurants were sold in 1994 and five are
currently operating. For the five operating Del Taco restaurants, the Registrant
receives rental revenues equal to 12 percent of restaurant sales.

Rental revenues for the three months ended June 30, increased from $106,780 in
1996 to $112,498 in 1997. The Registrant had rental revenues of $216,665 for the
six months ended June 30, 1997, representing an increase from the rental
revenues of $205,018 in 1996. The increase in revenues is directly attributable
to increased sales at the restaurants.





                                      -9-


<PAGE>   10


The following table sets forth rental revenue earned by restaurant for the
quarter and year to date:


<TABLE>
<CAPTION>
                                             THREE MONTHS ENDED                  SIX MONTHS ENDED
                                                  JUNE 30                             JUNE 30
                                            1997            1996              1997              1996
                                            ----            ----              ----              ----
<S>                                      <C>              <C>              <C>              <C>     
Bear Valley Rd., Victorville, CA         $ 22,556         $ 22,074         $ 42,848         $ 42,426

West Valley Blvd., Colton, CA              23,370           20,705           44,103           39,336

Palmdale Blvd., Palmdale, CA               22,085           24,892           46,207           48,096

DeAnza Country Shopping Center,            14,041           12,352           26,173           23,484
  Pedley, CA

Varner Road, Thousand Palms, CA            30,446           26,757           57,334           51,676
                                         --------         --------         --------         --------

          Total                          $112,498         $106,780         $216,665         $205,018
                                         ========         ========         ========         ========
</TABLE>


The following table sets forth the percentage relationship to total general and
administrative expenses of items included in the Registrant's Statements of
Income:

<TABLE>
<CAPTION>
                                               Percentage of Total
                                        General & Administrative Expense
                                        --------------------------------
                                                Six Months Ended
                                                     June 30
                                          1997                     1996
                                        -------                  -------
<S>                                     <C>                      <C>
Accounting fees                          60.61%                   48.58%
Distribution of
  information to
  Limited Partners                       36.84                    47.25
Other                                     2.55                     4.17
                                        ------                   ------
                                        100.00%                  100.00%
</TABLE>



                                      -10-



<PAGE>   11
Operating expenses include general and administrative expenses which consist
primarily of accounting fees and costs of distribution of information to the
Limited Partners. General and administrative expenses decreased for the three
months ended June 30 from $11,726 in 1996 to $9,523 in 1997. For the six months
ended June 30, general and administrative expenses decreased from $32,008 in
1996 to $31,417 in 1997. Depreciation expense was $36,018 for the three months
ended June 30, 1996 and $36,019 for the three months ended June 30, 1997. The
Registrant incurred depreciation expense in the amount of $72,037 for the six
months ended June 30, 1996 and $72,038 for the six months ended June 30, 1997.

For the three months ended June 30, 1997 revenues increased $5,943 and expenses
decreased $2,202, creating an increase in net income from $59,628 in 1996 to
$67,773 in 1997. As a result of increased revenues totaling $12,106 for the six
months ended June 30, 1997 and decreased expenses totaling $590 for the six
months ended June 30, 1997, the net income of the Registrant increased from
$102,336 for the six months ended June 30, 1996 to $115,032 for the
corresponding period in 1997.

For the reasons stated under "Liquidity and Capital Resources" above, the
Registrant's results of operations in the future will depend primarily upon the
gross revenues of the restaurants located on the Properties leased to Del Taco
as well as upon Del Taco's financial condition and results of operations
generally.


PART II. OTHER INFORMATION
--------------------------

Item 6.  Exhibits and Reports on Form 8-K

(b)      No reports on Form 8-K were filed during the six months ended
         June 30, 1997.

27       Financial Data Schedule.





                                      -11-

<PAGE>   12


                                   SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.

                                      DEL TACO RESTAURANT PROPERTIES II
                                      (a California limited partnership)
                                      Registrant

                                      Del Taco, Inc.
                                      General Partner



Date:  July 30, 1997                  /s/ Robert J. Terrano
                                      ----------------------------
                                      Robert J. Terrano
                                      Executive Vice President,
                                      Chief Financial Officer


Date:  July 30, 1997                  /s/ C. Douglas Mitchell
                                      ----------------------------
                                      C. Douglas Mitchell
                                      Vice President and Corporate
                                      Controller


                                      -12-