When Raul Ortega started his taco truck in Boyle Heights back in 2001, he probably had no idea just how hard the city would fall for him. Today his Jalisco-inspired tacos have become a rite of passage, and he now runs a number of trucks around town, not to mention this modest but cherished spot in Pomona. The menu is the same everywhere, limited to tostadas piled with various lime-kissed ceviches. Inside tip: opt for his signature fried shrimp taco tinged with spicy salsa and creamy avocado slices. It's an unequaled version, complete with a crunchy shell that collapses like tempura, as well as a rich and savory filling. First-time customers start with a single order, while regulars get right to business with a whole plate of them.