Taqueria Castillo B in the Tenderloin is a local favorite. The namesake quesadilla, aptly named Quesadillas Costillo is wrapped like a burrito. The spicy Camarones diablos delight seafood lovers looking for a taste of the sea with a bit of kick. With some of the tastiest tacos this side of The Mission, the al pastor should not be missed. Tortilla choices include the standard flour and corn, but wheat and spinach as well. Guests can order meat combo burritos, should they choose, that is to say al pastor and carnitas, or pollo and carne, etc. Whole avocados are used instead of guacamole, and fresh juices include orange, grapefruit, and carrot.