Tuna Salad Casserole 2 cans tuna, drained - flaked 1 can cream of celery soup 4 hard-cooked eggs, chopped 1 cup diced celery 1/2 cup mayonnaise 1/4 tsp. pepper 1 1/2 cups crushed potato chips Combine all ingredients except 1/4 cup of the crushed potato chips; stir well. Pour into greased Crock Pot. Top with remaining potato chips. Cover and cook on Low setting for 6-8 hours.