Founded in 1983 from a San Felipe fish taco recipe, Rubio's Coastal Grill operates inside Grossmont Center in La Mesa at Suite D-22 on Grossmont Center Drive. The signature Original Fish Taco wraps beer-battered wild-caught Alaska Pollock in a stone-ground corn tortilla with shredded cabbage, crema, and mild salsa — a Baja-coastal seafood build distinct from the traditional enchilada and mole plates at Mario's De La Mesa Restaurant in La Mesa Village. The San Diego-born chain sources all shrimp through Best Aquaculture Practices-certified suppliers and rotates wild-caught Mahi Mahi and Alaska Salmon across its grilled taco and bowl program. Scratch preparation defines the daily kitchen routine: guacamole hand-mashed from Hass avocados, slow-cooked pinto beans made from raw legumes without frying, and multiple salsas built in-house each morning. A full catering division adds taco-bar platters, burrito boxed lunches, and quesadilla trays for groups of ten or more — a counter-service event feed near Reading Cinemas at Grossmont that scales differently from the brunch-focused weekend lineup at Swami's Cafe La Mesa on La Mesa Boulevard. The most complex single-plate build layers sustainable wild-caught Langostino Lobster over citrus rice and black beans with drawn garlic herb butter, salsa fresca, guacamole, and chipotle picante sauce inside a pressed flour tortilla.