• 2 (6 ounce) cans tuna , water-packed and drained
  • 1/2 cup celery , finely chopped
  • 1/2 cup onion , finely chopped
  • 1 cup shredded cheddar cheese
  • 1/2 cup green olives , chopped (optional)
  • 1/4-1/2 cup mayonnaise , depending on amount desired
  • pepper , to taste
  • 4 hamburger buns , split
  • 1 Preheat oven to 350*.
  • 2 In a large bowl, combine tuna, celery, onion, cheese, olives, mayo and pepper.
  • 3 Divide tuna mixture evenly among 4 buns.
  • 4 Wrap sandwiches loosely in aluminum foil.
  • 5 Place on baking sheet.
  • 6 Bake 15-20 minutes or until heated through.