Heat the oil in a skillet over medium-high heat. To the hot oil, add the jalapenos, bell peppers, onions, and garlic and cook until tender, 7 to 8 minutes. Fold in the black beans, cumin, and coriander and season to taste with salt and pepper. Stir in the tomatoes, brown sugar, and Worcestershire or vinegar and simmer the mixture for a few minutes to combine the flavors. Squeeze the lime juice into the pan and stir. Serve the joe mixture on buns with chopped pickles and cilantro to top and a couple of chips or a green salad alongside.
Worcestershire sauce contains everything but the kitchen sink, including anchovies. I love it, but if you follow a strict vegetarian diet you might prefer to substitute vinegar.
Recipe Courtesy Rachael Ray's Big Orange Book