Preheat oven to 350 and spray a 6 count muffin tin with non-stick spray.
In a mixing bowl, combine the eggs, milk, salt, and pepper. Whisk well until slightly frothy. Stir in remaining ingredients.
Fill muffin tin with the egg mixture, filling each muffin cup about 3/4 full. Bake for 15-20 minutes or until the egg muffins have cooked through and lightly browned on top. Serve immediately or store and reheat for a quick grab and go breakfast!