8 potatoes, baked
1 can tuna, drained
3/4 c. mayonnaise
3 egg whites
1 c. grated sharp cheese
1/4 c. minced onion
Salt and pepper

Cut baked potatoes in half lengthwise and scoop out potato. Save shell. Mix potato, tuna, 1/2 cup mayonnaise, 1/2 cup grated cheese, 1/4 cup minced onion and salt and pepper. Replace potato mixture in potato shell. Bake at 400 degrees for 10 minutes. Remove from oven.

Beat 3 egg whites and fold in 1/2 cup grated cheese, 1/4 cup mayonnaise and dash of salt. Place topping on potatoes and bake 5 more minutes. Serve.