1 can tuna, drained
10 oz. sharp cheddar cheese
1/2 c. diced pickles
1/2 diced onion
1/2 c. mayonnaise
1/2 c. catsup; optional
Salt
Hamburger buns

Mix ingredients. Make into burgers and place in buns. Wrap each burger in foil. Bake at 350 degrees until cheese melts, about 15-20 minutes.