French bread pizza

Ingredients:
1 loaf French bread (split in half horizontally)
1 ½ cups pizza sauce
4 ounces fresh mushrooms (sliced)
1 ounce pepperoni (sliced)
1 cup mozzarella cheese
1 teaspoon oregano
¼ teaspoon salt
¼ teaspoon pepper
2 tablespoons parmesan cheese (grated)

Again, just so I don't forget about it!