Ingredients

1 can tuna, drained
1 cup celery, chopped
1/2 cup American cheese, cut up
1 small onion, minced
1/4 cup mayonnaise
salt and pepper, to taste
buns

Instructions

Mix together tuna, celery, cheese, onion, mayonnaise, salt and pepper. Put tuna mixture on buns. Wrap buns in aluminum foil and place on baking sheet. Bake at 350 degrees F for 15 minutes.