Question: What is an enclosed shopping center located in Richardson, Texas, United States that includes pad sites one being an American drive-in fast-food restaurant chain ranked 10th in "QSR Magazine"'s rankings of the top 50 quick-service and fast-casual restaurant brands in the nation? 

Context paragraphs:
Troy Smith (businessman): Troy Nuel Smith, Sr. (May 26, 1922 – October 26, 2009) was an American entrepreneur who founded Sonic Drive-In, a fast-food restaurant chain based in Oklahoma City, Oklahoma, that recreates the drive-in diner feel of the 1950s, complete with carhops who usually wear roller skates.  By the time of Smith's death in 2009, the chain had 3,600 restaurants in 42 U.S. states.

Richardson Square Mall: Richardson Square Mall was an enclosed shopping center located in Richardson, Texas, United States.  Richardson Square Mall demolition began in June 2007.  Now located in its place is an outdoor retail center which goes by the name Richardson Square.  The retail center includes Super Target with a Starbucks and Pizza Hut Express inside, Sears, Ross Dress for Less, Anna's Linens, and a Lowe's home improvement store.  The center also includes pad sites such as Panda Express, Chick-fil-A, Whataburger, Sonic Drive-In, and a Bank of America.

Pad site: A pad site or outparcel is a freestanding parcel of commercial real estate located in the front of a larger shopping center or strip mall.  Desirable because of their visibility to consumers, accessibility, and the ease of facilitating drive-thru service, pad sites are typically sought after by banks, casual dining, and fast food restaurants.  Pad sites usually range between 2,000 and 75,000 square feet (2000 and ).  They can be ground leased by developers or purchased outright.  The former offers a lower up-front cost, but the user is unable to use the land as collateral to finance building expenses because pad sites do not have their own legal address.  The latter requires a larger capital investment, but provides the user an appreciable asset in real estate.

El Meson Sandwiches: Meson Sandwiches is a fast-casual restaurant chain that primarily sells sandwiches, salads and breakfast items, which it serves all day long.  Based in Mayagüez, Puerto Rico El Meson Sandwiches is Puerto Rico’s largest restaurant chain.  In 2012 it was named one of the world’s top fast food chains by "Travel & Leisure" magazine.

The Maine Mall: The Maine Mall, also known as Maine Mall, built in 1971, is an enclosed shopping mall located in South Portland, Maine, a suburb of Portland.  At 1200000 sqft , it is the largest shopping mall in the state of Maine, and the largest in northern New England.  Anchored by Best Buy, JCPenney, Macy's, and Sears, the mall features over 140 tenants, a food court and several ancillary restaurant/retail pad sites.

Mac's Steak in the Rough: Mac's Steak in the Rough is a drive-in fast-food restaurant in Albuquerque, New Mexico, that serves American and New Mexican cuisine.  It used to be a chain of restaurants, but its locations were reduced to a single restaurant.  They have begun to expand again, by opening a location inside the Latitudes gas station near the entrance of Intel in Rio Rancho.

Sonic Drive-In: Sonic Drive-In, more commonly known as Sonic, is an American drive-in fast-food restaurant chain based in Oklahoma City, Oklahoma.  As of August 31, 2016, restaurants were in 45 U.S. states.  In 2011, it was ranked 10th in "QSR Magazine"'s rankings of the top 50 quick-service and fast-casual restaurant brands in the nation (moving the 13th for 2015 and 2016).  Known for its use of carhops on roller skates, the company annually hosts a competition to determine the top skating carhop in its system.

McDonald's Canada: McDonald's Canada (French: "Les Restaurants McDonald du Canada Ltée" ) is the Canadian master franchise of the fast-food restaurant chain McDonald's, owned by the American parent McDonald's Corporation.  One of Canada's largest fast-food restaurant chains, the franchise sells food items, including hamburgers, chicken, French fries and soft drinks all across the country.  McDonald's is known for its high fat and calorie foods, but it also has alternatives such as salads, juices and milk.  McDonald's was previously Canada's largest food service operator before being overtaken by Tim Hortons in 2005.  The slogans used in Canada are "i'm lovin' it" (in English) and "c'est ça que j'm" (in French).

Bennigan's: Bennigan's is an Irish pub-themed casual dining restaurant chain founded in 1976 in Atlanta by restaurateur Norman E. Brinker as one of America's original casual dining concepts.  The chain operated under the restaurant division of Pillsbury for most of its history, until Pillsbury was bought out by the British liquor conglomerate Grand Metropolitan Known.  Due to laws preventing liquor manufacturers from also operating liquor sellers, the chain was sold to Texas-based Metromedia restaurants, until the company filed for bankruptcy in 2008.  The chain then went through a series of restructuring and ownership changes until it was purchased by Legendary Restaurant Brands, LLC in 2015.  The company is now operating out of Dallas, Texas.

Dulles Town Center: The Dulles Town Center (DTC) is a two-level enclosed shopping mall in Dulles, Loudoun County, Virginia, United States, located five miles north of the Washington Dulles International Airport.  The retail center gives its name to the census-designated place (CDP) within which it is located.  It encompasses 1400000 sqft of GLA and is the largest enclosed shopping center in Loudoun County.  The mall caters to the burgeoning and affluent population of eastern Loudoun and western Fairfax counties.  Dulles Town Center is anchored by Dick's Sporting Goods, J.C. Penney, Lord and Taylor, Macy's, Nordstrom, Sears and features an eclectic mix of upscale retailers such as Abercrombie & Fitch, Banana Republic, and LOFT.  In addition, the mall has been a launch pad for international retailers emerging into the U.S. market.  High-end New Zealand children's store Pumpkin Patch opened its second U.S. store and German restaurant chain Vapiano opened its third U.S. location at Dulles Town Center in 2007.  In 2015, Vapiano closed down and it's former spot is now unoccupied in the mall.

Supporting paragraphs: Richardson Square Mall Sonic Drive-In
Answer: Richardson Square Mall