This Calexico on Union Street is one of three locations in the city. Come to this cozy and popular restaurant for a wide array of burritos, tortas, quesadillas, tostadas and tacos. Fillings include carne asada, pulled pork, as well as tofu and black beans for vegetarians and vegans. Happy hour is from 9am to 11pm, and delivery is available to a large swath of Brooklyn for orders of $10 or more. Visit Calexico's website for more information and for links to a number of reviews.