Hamburger Boat

1 Loaf French Bread

1 can Mushrooms -- sliced

1 pound Ground beef

1 Onion -- diced

15 ounce Tomato sauce

1 package Mozzarella cheese slices

Remove center of bread to make a boat shape. Brown ground beef; add sauce, mushrooms and onion. Simmer 2-3 minutes. Pour into bread and top with slices of cheese. Heat on baking sheet at 350~ for 10-15 minutes or until the cheese melts. Slice to serve. Serves 5-6.