1 lb. ground beef (browned & drained)
1/3 c. grated Parmesan cheese
1/4 c. minced onion
1 (6 oz.) can tomato paste
1 tsp. salt
1/2 tsp. pepper
1 loaf French bread halved lengthwise
3 tomatoes, sliced
4 oz. mozzarella or Cheddar cheese, sliced

Combine beef, Parmesan, onion, tomato paste, salt and pepper; mix well. Spread on 2 halves of bread. Bake in oven at 350 degrees for 15 minutes. Arrange tomatoes and cheese on top and broil 6 inches from heat, about 10 minutes.