One of the long-standing heroes of the old-school taco trucks (a.k.a. loncheros), Mariscos Jalisco has earned a deservedly loyal and devoted following. Their signature tacos dorado de camarón, or shrimp tacos ($2.50), are far from a secret, but they live up to the hype with flavorful and fresh shrimp folded into a corn tortilla that is then fried to a golden brown and topped with thick slices of avocado and a vibrant and complex salsa roja. Other dishes, such as the towering, seafood-packed Poseidon tostada ($9.50), are also worth an order, but who can resist filling up on those crispy shrimp beauties? Note: These trucks are cash-only.