A food processor (10, 310, 410, 710, 1010, 1210, 1410), comprising: a base (12, 612, 712, 1012, 1212, 1412) having a motor, positioned therein, a bowl (20, 1020, 1220, 1420) removably coupled to the base (12, 612, 712, 1012, 1212, 1412), a lid (22, 428) removably coupled to the bowl (20, 1020, 1220, 1420) so as to define a processing chamber, the lid (22, 428) having a feed tube that opens into the bowl (20, 1020, 1220, 1420), a cutting assembly (16, 416) positioned in the processing chamber and driven by the motor to cut food items advanced through the feed tube, the cutting assembly (16, 416) being positionable between a plurality of cutting positions to produce cut food items of varying thicknesses, and an adjustment assembly (42, 342, 642, 742, 1042, 1242, 1442) comprising a sleeve and a user-operated control device (744, 1044) operable to move the cutting assembly (16, 416) between the plurality of cutting positions while the cutting assembly (16, 416) is driven by the motor, characterized in by, the adjustment assembly (742, 1042) comprising (i) the sleeve being rotatively coupled to the base (712, 1012), (ii) a gear assembly (88, 688, 788, 888, 1088, 1388, 1488), positioned in the base (712, 1012) and operable to rotate the sleeve, and (iii) the user-operated control device (744, 1044) being configured to rotate and operate the gear assembly (88, 688, 788, 888, 1088, 1388, 1488), to rotate the sleeve, wherein rotation of the gear assembly (88, 688, 788, 888, 1088, 1388, 1488), causes rotation of the sleeve, which causes the cutting assembly (16, 416) to move between the plurality of cutting positions while the cutting assembly (16, 416) is driven by the motor (14, 344). a base (12, 612, 712, 1012, 1212, 1412) having a motor, positioned therein, a bowl (20, 1020, 1220, 1420) removably coupled to the base (12, 612, 712, 1012, 1212, 1412), a lid (22, 428) removably coupled to the bowl (20, 1020, 1220, 1420) so as to define a processing chamber, the lid (22, 428) having a feed tube that opens into the bowl (20, 1020, 1220, 1420), a cutting assembly (16, 416) positioned in the processing chamber and driven by the motor to cut food items advanced through the feed tube, the cutting assembly (16, 416) being positionable between a plurality of cutting positions to produce cut food items of varying thicknesses, and an adjustment assembly (42, 342, 642, 742, 1042, 1242, 1442) comprising a sleeve and a user-operated control device (744, 1044) operable to move the cutting assembly (16, 416) between the plurality of cutting positions while the cutting assembly (16, 416) is driven by the motor, characterized in by, the adjustment assembly (742, 1042) comprising (i) the sleeve being rotatively coupled to the base (712, 1012), (ii) a gear assembly (88, 688, 788, 888, 1088, 1388, 1488), positioned in the base (712, 1012) and operable to rotate the sleeve, and (iii) the user-operated control device (744, 1044) being configured to rotate and operate the gear assembly (88, 688, 788, 888, 1088, 1388, 1488), to rotate the sleeve, wherein rotation of the gear assembly (88, 688, 788, 888, 1088, 1388, 1488), causes rotation of the sleeve, which causes the cutting assembly (16, 416) to move between the plurality of cutting positions while the cutting assembly (16, 416) is driven by the motor (14, 344).