Ingredients:
- 2 cans tuna, drained
 - 1 cup celery, diced
 - 1 small onion, diced
 - 1/2 cup grated cheese
 - 1/4 cup mayonnaise
 - salt & pepper
 - hamburger buns or English muffins
 
Directions:
- Mix all ingredients together.
 - Spread on buns or English muffins. Wrap in foil.
 - Bake at 350° for 15-20 minutes until cheese is melted.