Loaded Cheesy French Bread

loaf french bread (cut in half lengthwise)

butter (softened (not melted))

heaping Tbsp. Mayonnaise (stick with the real stuff, not low-fat)

Monterey Jack cheese (shredded)

olives (sliced)

slices pepperoni (chopped (again, we like to use turkey pepperoni))

mushrooms (sliced, then roughly chopped)

green onions (sliced and chopped)

Any other pizza toppings you like (to taste)