Named for the Tijuana area code, 664 TJ Birrieria at 540 University Ave runs one of its 11 San Diego County locations inside Hillcrest's 92103 ZIP code. The menu centers on slow-cooked shredded beef served as tacos, quesabirria, and madrazos alongside cups of consomé, a Baja-style lineup that complements the seafood-driven Mexican plates at Oscars Mexican Seafood farther east on University Ave. Each corn tortilla is dipped in beef consomé before griddling, producing the signature orange hue and caramelized edges the concept is known for. Diners chasing craft cocktails after a birria run head to Aero Club Bar a few blocks south on India St. The Hillcrest location mirrors the original National City kitchen's format, serving birria by the half-order or full-order with stacks of consomé-dipped tortillas, house-made red salsa, diced onion, cilantro, and radishes for a full build-your-own taco spread.