Which Wich occupies the South Campus Plaza strip at 5140 College Avenue in San Diego's College Area, directly adjacent to SDSU's main pedestrian corridor and the cluster of student-serving restaurants that define this stretch. The build-your-own sandwich format starts with a paper bag menu where customers mark their protein, bread, and topping selections before handing the bag to the line crew, a system designed to handle the volume surges that come with a location steps from a 36,000-student university. Bread options rotate through white, wheat, wraps, and a lettuce wrap for low-carb builds, and the dining cluster around College Avenue near SDSU pairs sandwich counters with pizza spots and late-night options, including the campus-adjacent pies at Woodstock's Pizza SDSU in the same commercial zone. The 92115 location doubles as a catering hub for campus events, Greek life functions, and study-group orders, offering sandwich trays, boxed lunches, and a cookie platter sized for 10 to 50 people. San Diego's sandwich market skews toward banh mi and California-style delis, which makes the Midwestern-born Which Wich format — fully customizable, portion-controlled, and repeatable — a functional contrast to the independent shops on the El Cajon Blvd corridor. A kids' menu runs smaller portions at lower price points, and the restaurant accepts campus meal-plan equivalencies during the academic year. Restaurants near SDSU that serve the quick-lunch window compete on speed and proximity, and the per-sandwich build time under three minutes positions Which Wich for the 15-minute gaps between classes. The College Avenue corridor between Montezuma Road and Hardy Avenue concentrates more student-serving food per block than any other stretch in the neighborhood, and the coffee-to-sandwich pairing with single-origin roasters at Scrimshaw Coffee a few blocks south reflects the rhythm of a campus district where meals and caffeine stack back-to-back. Each sandwich ships on bread baked from frozen parbake dough that finishes in a convection oven calibrated to 375 degrees, producing a crust firm enough to hold layered cold cuts without compressing under wrap pressure.