Combine butter, mayonnaise, mushrooms, black olives, and green ... aside. Slice French bread loaf in half lengthwise; spread ... until cheese is melted.
Brown beef with chopped onions, bell peppers, mushrooms and butter. Add Cheddar cheese ... scoop centers of bread out). Mix pieces of bread ... from getting too hard.
Brown meat and drain. Saute onion, bell pepper and mushrooms until tender. Cut French bread lengthwise. Pull out inside bread, ... minutes. Slice and serve.