Slice the loaf in half through the center and then in half so that you have two half-moon sandwiches.
Grill the beef on a hot griddle in a little olive oil.
Do not over cook.
Place the meat on a bottom half of the sandwich.
Top with the pizza sauce and cheese.
Broil until melted.
Top with onions and peppers, if you wish.
Place lid on sandwich and enjoy.