Stromboli - cooking recipe

Ingredients

1 loaf frozen bread dough (I use whole wheat)
1 c. sliced mushrooms
1/2 c. chopped green peppers
1/2 c. chopped onion
1 Tbsp. butter
1/4 lb. thin sliced ham
1/4 lb. thin sliced salami
1/4 lb. thin sliced cheese (I use 1/2 Swiss, 1/2 American)
1 1/2 oz. thin sliced pepperoni

Preparation

Note:
Can use different types of meats and cheeses.