Portuguese Sausage, Mushroom & Five Cheese Egg White Frittata

Serves: 4-6 people Cooking Time: 35 minutes Ingredients: 12 Large Eggs, Whites Only (3 eggs per person) ½ Small Red Onion, Diced 8 oz Package pre-shredded Kraft Italian style five-cheese blend 1 Package of Mushrooms, Sliced 1 Package of Portuguese Sausage (Hot, Medium or Mild Heat) Pinch of Salt and Black Pepper Nonstick Cooking Spray [...]