3 lb. hamburger
1 lg. onion, chopped
3 cloves garlic, minced
2 (15 oz.) tomato sauce
Sm. jar olives, chopped
4 tbsp. oregano
1/4 c. Parmesan
1 lb. mozzarella cheese
18 hard rolls or hamburger buns

Brown hamburger, onions and garlic. Drain. Add remaining ingredients. Fill buns. Bake in 350 degree oven for 30 minutes.