Potato Cheese Casserole

3 cups of cooked, mashed potatoes
1 egg, separated
1/2 cup of shredded cheese, American
1/2 small green pepper, finely chopped
2 green onion, finely chopped
1 egg whites
Vegetable cooking spray
1/2 tsp. paprika

Combine mashed potato and egg yolk, stirring until well blended. Stir in cheese, green pepper, and green onions. Beat 2 egg whites at high speed of electric mixer until soft peaks form. Fold egg whites into potato mixture.

Spoon mixture into a 1 1/2 quart casserole dish coated with vegetable cooking spray. Sprinkle paprika evenly over top of casserole, and bake at 375 degrees for 25-30 minutes.