Ingredients:

• 2 tablespoons olive oil
• 1 red pepper, chopped
• 1 green pepper, chopped
• 1/4 yellow onion, chopped
• 1 teaspoon kosher salt
• 1 teaspoon black pepper
• 8 egg whites (either separated or in a carton)
• 1/2 cup feta cheese, crumbled
• 2 cups fresh spinach

Directions:

Preheat the oven to 375 F.
In a heavy skillet, add olive oil and bring to medium-low heat.
Saute onions and peppers until vegetables are tender, about 7 minutes.
Sprinkle the mixture with salt and pepper.
Pour egg whites into the skillet and cook for 3 minutes.
Sprinkle the top with feta and spinach.
Put skillet in oven and bake, uncovered, for 8 to 10 minutes. (If you use whole eggs instead of egg whites, bake at 400 F.)
Loosen the edges of the frittata with a rubber spatula, and then invert onto a plate.

Enjoy, dolls!