1 lb. lean hamburger
1/3 c. Parmesan cheese
1/4 minced onion
1 tsp. salt
1 tsp. oregano
1/2 tsp. pepper
1 can tomato paste
1 loaf French bread
2 tomatoes, sliced
4 slices American cheese

Mix hamburger, Parmesan cheese, onion, spices and tomato paste together. Split French bread lengthwise. Spread meat mixture on bread making sure to completely cover edges. Broil for 12 to 15 minutes 4" to 6" away from broiler. Alternate a tomato slice and triangle of cheese, overlapping slightly. Broil for 2 more minutes or until cheese just begins to melt. Let stand 5 minutes before slicing.