It’s a Mexican Sandwich served on a bun and filled with meat, sauce, and various toppings such as creme, avocado, salsa, tomatoes, butter and lettuce. Choice of meat: Carne Asada(Steak), Cabeza(Beef Head), Labio(Beef Lip), Al Pastor(Pork), Barbacoa or Birria(Beef), Carnitas(Mexican Pork), Pollo(Chicken), Tripa( Beef Chitterlings) Lengua(Beef Tongue)