Step 1

Preheat oven to 350 degrees. Generously grease muffin tin with butter, set aside.In a medium bowl whisk together eggs, onion powder, garlic powder, pepper and salt, set aside.

Step 2

Divide the diced red onion, bell peppers and spinach between the 12 muffin cups.

Step 3

Pour in the egg mixture filling each cavity 3/4 of the way full.

Step 4

Bake for 15-20 minutes or until the egg muffins look set. Note they will puff up as they cook and will deflate as they cool. Cool for 2-3 minutes in the pan then remove and serve immediately!