Preheat oven to 375 F. Cut small squares (about the size to cover the bottom of the muffin tin) of parchment paper and place in the bottom of the muffin tin. Prepare 12 muffin circles by spraying generously with non-stick spray.
Cook Sweet potatoes in a skillet for4-5 minutes or until soft and slightly browned. Add onions and bell peppers, cook for 2 additional minutes. Add garlic and spinach and cook for 2 additional minutes.
In a medium size bowl, crack eggs and whisk together with salt and pepper. Add cooked veggies and stir well to mix.
Pour into prepared muffin tin. I used 1/4 cup measuring cup to create equal sized cups. Sprinkle with cheese if desired.
Bake for 16-17 minutes or until center is set. Garnish with parsley.
