2 cups Tuna
2/3 cup mayonnaise
1 medium onion, finely chopped
1 1/2 cups celery, finely chopped
1 tsp. lemon juice
1/4 tsp. salt
Black pepper to taste

Mix above ingredients and top with the following: grated cheddar cheese and crushed potato chips. Bake at 375 F for 15 minutes or until cheese is melted and celery and onion is cooked.