1 (6-7 oz.) can tuna
1 1/2 tsp. prepared mustard
1/4 tsp. Worcestershire sauce
1/4 c. mayonnaise
1 1/2 tsp. grated onion
2 tbsp. chopped green pepper
3 hamburger buns, split
1/2 c. mayonnaise
1/4 c. shredded American or cheddar cheese
6 tomato slices

Blend first 6 ingredients. Pile onto bun halves. Top each with tomato slice. Blend 1/2 cup mayonnaise with cheese; spread on tomato slices. Broil 4 inches from heat until topping puffs and browns. Makes 6.