Castañeda's Mexican Food on Chula Vista's Third Avenue traces its lineage to 1986, when the original Santana's Mexican Food opened on 29 Palms Highway in Yucca Valley before the name transitioned to Castañeda's in 2015. Now operating dozens of locations across Southern California, the Chula Vista outpost at the Florence Shopping Center runs a round-the-clock counter-service kitchen known as the self-described "Home of the Carne Asada Fries," a claim that draws from the same late-night taco-shop culture fueling the plate-lunch crowd at Homestyle Hawaiian across town. The menu spans California burritos, tacos estilo Tijuana with jack cheese and guacamole, rolled taquitos, sopes, mulitas, and seafood plates alongside breakfast combos served at every hour. Jalapeño poppers stuffed with a garlic-heavy seasoning blend have developed a cult following distinct from standard cream-cheese versions. The 24-hour format makes the Third Avenue location a provisioning stop for the South Bay's shift workers and the grocery shoppers at Carnival Supermarket, connecting late-night Mexican fare with the corridor's round-the-clock commercial rhythm. The carne asada fries layer USDA-choice grilled flap meat over a bed of fresh-cut fries, then blanket the stack with melted jack cheese, guacamole, sour cream, and pico de gallo in a styrofoam tray engineered to retain heat through a takeout window.