Mexican Frittata

Step 1
Preheat the oven to 350 degrees F (175 degrees C). Spray a small casserole dish with cooking spray.

Step 2
Heat oil in a 12-inch nonstick skillet over medium heat. Add bell pepper and onion and cook until tender, about 5 minutes.

Step 3
While pepper and onion are cooking, combine milk, egg whites, whole eggs, salt, pepper, and cumin into a medium bowl using a whisk.

Step 4
Transfer cooked vegetables to the prepared casserole dish. Pour egg mixture over the top.

Step 5
Bake in the preheated oven until eggs are set, about 30 minutes.

Step 6
Remove frittata from the oven and cut into wedges or squares. Place onto a plate and top with salsa.