STEP 1: Reheat the Multi-Purpose Shredded beef in the microwave or in a small sauce pot over low heat. While the beef is heating, thinly slice the bell peppers and onions. Preheat the oven to 400 degrees.
STEP 2: Place one teaspoon of vegetable oil in a large skillet and place over a medium-high flame (or use a non-stick skillet with a little non-stick spray). When the skillet is very hot, add about 1/3 of the sliced vegetables. Saute for 2-3 minutes, or until they become soft and the edges become golden brown. Continue to cook the rest of the vegetables in small batches and replenishing the oil as needed. Try not to over crowd the skillet, which can trap the steam and cause the vegetables to stew instead of caramelize on the edges.
STEP 3: Cut the French bread loaf into four equal pieces and then slice each piece open. Place the opened bread on a baking sheet. Divide the shredded beef between the four sets of bread. Pile the beef on one half and spoon some of the cooking juices over the other half. Add the sauteed onions and peppers on top of the beef and then top each sandwich with a slice of provolone.
STEP 4: Bake the sandwiches in the oven for 3-5 minutes, or until the cheese is melted and the bread is slightly crispy on the edges, then EAT.