2 c. cooked shell macaroni
1 lb. browned hamburger
salt and pepper
1 (4 oz.) can mushrooms
1 c. pizza sauce
1 (14 oz.) can tomato sauce
1 c. Parmesan cheese
1 onion, chopped
pepperoni

Mix all ingredients together. Put in a casserole dish. Top with 1 cup Mozzarella cheese and sprinkle with oregano.

Bake in a covered casserole dish in a 375°F oven for 30 minutes.