Three-Cheese Potato Souffle - cooking recipe

Ingredients

4 c. mashed potatoes (without added milk or butter)
1 c. fat-free milk
1 c. (4 oz.) shredded reduced-fat cheddar cheese
2/3 c. shredded reduced-fat Swiss cheese
1/3 c. shredded Parmesan cheese
1/3 c. chopped green onions
1 small onion, chopped
1-1/4 tsp. salt
1/4 tsp. pepper
4 eggs, separated

Preparation

In a large bowl, combine the first nine ingredients. Beat egg yolks; stir into potato mixture. In a small mixing bowl, beat egg whites until stiff peaks form; gently fold into potato mixture. Transfer to a 2-qt. souffle dish coated with nonstick cooking spray. Bake, uncovered, at 375\u00b0 for 40 - 45 minutes or until golden. Serve immediately.