1 can (7 oz) tuna — drained
2 tablespoons onion — chopped
2 tablespoons pickle — chopped
1/4 cup mayonnaise
slice of cheese — optional
Combine ingredients. Split and toast hamburger buns, and spread bottom half wit h tuna mixture. Top with a slice of cheese and broil for 4 minutes or until che ese melts. Add bun toppers.