McDonald's in La Mesa's Grossmont area occupies a built-in counter inside the Walmart Supercenter at 5500 Grossmont Center Drive, adjacent to Reading Cinemas and the broader Grossmont Center shopping complex. The menu runs the full national lineup of quarter-pound beef patties, Chicken McNuggets, and Egg McMuffin breakfast builds, a high-volume counter-service model that contrasts with the retro arcade-bar burger format at Coin Haus in La Mesa Village. Founded in 1940 as a single drive-in in San Bernardino, California, the chain now franchises more than 13,500 U.S. locations. This Grossmont Center Drive outpost draws weekday lunch traffic from the Sharp Grossmont Hospital campus and the medical offices clustered along Fletcher Parkway, placing it inside La Mesa's highest-density employment corridor. McCafé espresso drinks and McFlurry soft-serve desserts extend the menu past burgers, though the dedicated dessert scene on University Avenue also includes Extraordinary Banana Pudding for scratch-recipe Southern-style sweets. A Coca-Cola Freestyle dispenser at this location mixes more than 100 beverage combinations from micro-dosed flavor cartridges through a single touchscreen unit.