Cook some ground beef (turkey used to be my favorite) with some onions and garlic on olive oil, until it gets nice and golden. Once it's like that, add up the black beans and let it stir for a while. Add then some worchestershire (sp?!) sauce and some hot buffalo sauce, actually, make that a LOT of buffalo sauce. Cook it through, place it on a nice tortilla, add cheese on top and shazam, got yourself a delicious burrito.