1 (6 1/2 oz.) can tuna
1 c. chopped celery
1 sm. onion, minced
1/4 c. mayonnaise
Salt & pepper to taste
6 split hamburger buns
Butter
6 slices American cheese

Fill buns with tuna mixture. Place 1 slice process American cheese on each and put top of bun on. Wrap in aluminum foil and place on baking sheet. Bake at 350 degrees for 15 minutes. Makes 6 sandwiches.