A food processor comprising: a base having a motor positioned therein, a removable bowl coupled to the base, a removable lid coupled to the bowl so as to define a processing chamber, the lid having a feed tube that opens into the bowl, a cutting assembly positioned in the processing chamber and driven by the motor to cut food items advanced through the feed tube, the cutting assembly being positionable between a plurality of cutting positions to produce cut food items of varying thicknesses, an adjustment assembly positioned in the base, comprising (i) a first sleeve secured to the base, (ii) a second sleeve rotatable with respect to the first sleeve, and (iii) a user-operated control device operable to move the cutting assembly between the plurality of cutting positions via the first and second sleeves (142, 140); characterized in that: the second sleeve is rotatively coupled to the first sleeve, and in that: the adjustment assembly further comprises a gear assembly positioned in the base and coupled to the second sleeve, the gear assembly being operable to rotate the second sleeve relative to the first sleeve, wherein the second sleeve has a groove defined therein, and the gear assembly comprises (i) a first gear including a first plurality of teeth defined on an outer surface and a spline extending from an inner surface, the spline being received in the groove of the second sleeve, and (ii) a second gear including a second plurality of teeth interdigitated with the first plurality of teeth; and wherein the user-operated control device is coupled to the gear assembly and is configured to rotate the second gear and the first gear thereby to rotate the second sleeve relative to the first sleeve to move the cutting assembly between the plurality of cutting positions. a base having a motor positioned therein, a removable bowl coupled to the base, a removable lid coupled to the bowl so as to define a processing chamber, the lid having a feed tube that opens into the bowl, a cutting assembly positioned in the processing chamber and driven by the motor to cut food items advanced through the feed tube, the cutting assembly being positionable between a plurality of cutting positions to produce cut food items of varying thicknesses, an adjustment assembly positioned in the base, comprising (i) a first sleeve secured to the base, (ii) a second sleeve rotatable with respect to the first sleeve, and (iii) a user-operated control device operable to move the cutting assembly between the plurality of cutting positions via the first and second sleeves (142, 140); characterized in that: the second sleeve is rotatively coupled to the first sleeve, and in that: the adjustment assembly further comprises a gear assembly positioned in the base and coupled to the second sleeve, the gear assembly being operable to rotate the second sleeve relative to the first sleeve, wherein the second sleeve has a groove defined therein, and the gear assembly comprises (i) a first gear including a first plurality of teeth defined on an outer surface and a spline extending from an inner surface, the spline being received in the groove of the second sleeve, and (ii) a second gear including a second plurality of teeth interdigitated with the first plurality of teeth; and wherein the user-operated control device is coupled to the gear assembly and is configured to rotate the second gear and the first gear thereby to rotate the second sleeve relative to the first sleeve to move the cutting assembly between the plurality of cutting positions. the second sleeve is rotatively coupled to the first sleeve, and in that: the adjustment assembly further comprises a gear assembly positioned in the base and coupled to the second sleeve, the gear assembly being operable to rotate the second sleeve relative to the first sleeve, wherein the second sleeve has a groove defined therein, and the gear assembly comprises (i) a first gear including a first plurality of teeth defined on an outer surface and a spline extending from an inner surface, the spline being received in the groove of the second sleeve, and (ii) a second gear including a second plurality of teeth interdigitated with the first plurality of teeth; and wherein the user-operated control device is coupled to the gear assembly and is configured to rotate the second gear and the first gear thereby to rotate the second sleeve relative to the first sleeve to move the cutting assembly between the plurality of cutting positions. the adjustment assembly further comprises a gear assembly positioned in the base and coupled to the second sleeve, the gear assembly being operable to rotate the second sleeve relative to the first sleeve, wherein the second sleeve has a groove defined therein, and the gear assembly comprises (i) a first gear including a first plurality of teeth defined on an outer surface and a spline extending from an inner surface, the spline being received in the groove of the second sleeve, and (ii) a second gear including a second plurality of teeth interdigitated with the first plurality of teeth; and wherein the user-operated control device is coupled to the gear assembly and is configured to rotate the second gear and the first gear thereby to rotate the second sleeve relative to the first sleeve to move the cutting assembly between the plurality of cutting positions.