Ingredients for - Skinny Crustless Spinach Quiche

1. Cooking spray
2. Unsalted butter 3 tablespoons
3. Mushrooms, chopped 6 ½ ounces
4. Chopped onion ½ cup
5. Minced garlic 3 tablespoons
6. Fresh spinach, chopped 1 (10 ounce) package
7. Egg whites 1 cup
8. Skim milk 1 cup
9. Shredded fat-free Cheddar cheese 1 (8 ounce) package
10. Crumbled fat-free feta cheese 6 ounces
11. Salt and ground black pepper to taste 6 ounces

How to cook deliciously - Skinny Crustless Spinach Quiche

1 . Stage

Preheat the oven to 375 degrees F (190 degrees C). Spray a 9x13-inch baking dish with cooking spray.

2 . Stage

Heat butter in a skillet over medium heat. Saute mushrooms, onion, and garlic in the hot pan until onion is tender, about 7 minutes. Add spinach to the onion mixture and cook over low heat until spinach is limp and most of the water has evaporated, 5 to 7 minutes.

3 . Stage

Place egg whites into a bowl and add milk; whisk together. Add 1/2 cup Cheddar cheese and feta cheese. Stir in spinach mixture until thoroughly mixed. Season with salt and pepper. Pour mixture into the prepared baking dish.

4 . Stage

Bake in the preheated oven for 15 minutes. Remove from the oven and sprinkle remaining Cheddar cheese over quiche. Return to the oven and continue to bake until center is set, about 40 minutes.