1 1/2 lbs. ground beef
1 can (10 3/4 oz.) Campbell's tomato soup
1/3 c. finely chopped onion
1 tbsp. prepared mustard
1 tbsp. Worcestershire sauce
1 tbsp. each horseradish and salt

Mix all ingredients. Spread evenly on 1 medium loaf French bread, split and toasted. Cover edges completely. Broil about 4 inches from heat, 12 minutes. Top with sliced tomatoes and cheese. (Thinly sliced onion may also be added.) Alternate tomato, cheese, onion across the loaf. Broil until cheese melts.