1/2 lb. cheddar cheese, diced
2 (8 oz.) cans tomato sauce
1 can mushrooms, drained
1 can pitted chopped black olives
1 lg. onion, diced
1/2 c. salad oil
1 tsp. oregano
1 tsp. garlic salt
1 lg. loaf French bread, cut lengthwise

Combine all except bread; let stand 1 hour. Spread each half of bread with mixture. Broil until cheese melts.