Inspired by the western-coastal and southern cuisines of Mexico, Lone Star Taco Bar has created an easy-to-love menu where most everything is gluten-free. At the Allston location near BU as well as at a Cambridge outpost, the Tex-Mex haunt is always open late and known for tacos ranging from Beef Barbacoa to Veracruz Fish and the fan-favorite Birria. The Allston spot also boasts an umbrella-shaded backyard deck, perfect for slugging down a margarita or two.