Mariscos & Birria El Prieto in Chula Vista operates a Latino-owned, dual-truck seafood and birria setup on Main Street, serving over 200 customers per day from a covered outdoor dining area with communal standing tables. The operation runs two independent kitchens—one dedicated to Baja-style mariscos and the other to slow-braised birria—mirroring the split taco-and-catering model at Baja Tacos & Gourmet Catering but with a permanent-site format that has anchored this corner for over 25 years. The seafood truck produces fish tacos on handmade corn tortillas, aguachile verde with serrano-lime marinade, and a signature gobernador taco stuffed with melted cheese and sautéed shrimp. A self-serve consomé station offers free bone broth for dipping alongside every order, a tradition that pairs naturally with the craft-beer flights poured at Chula Vista Brewery in the same South Bay dining circuit. The birria truck braises beef cheek and shank in a guajillo-ancho-morita chile blend for a minimum of six hours, producing a consomé reduction concentrated enough to serve as both a taco dip and a standalone soup course.