1 (4 oz.) can mushrooms
1 can ripe olives, sliced
1 can green olives, sliced
1/2 c. green pepper, diced
1/2 c. onion, diced
1 c. mayonnaise
1 c. Mozzarella cheese, shredded
1 c. Cheddar cheese, shredded
1 pkg. pepperoni

Mix all ingredients except pepperoni. Spread on cookie sheet. Cover with pepperoni. Heat in 350 degree oven until cheese melts.