Preheat your oven to 350°F and lightly grease six slots of a standard muffin tin with the olive oil.
In a small skillet over medium heat, cook the ground turkey until fully browned and crumbled.
Finely dice the red bell pepper and roughly chop the fresh spinach.
In a medium mixing bowl, whisk together the whole eggs, egg whites, sea salt, black pepper, and garlic powder until well combined.
Stir the cooked turkey, diced peppers, chopped spinach, and shredded cheddar cheese into the egg mixture.
Pour the mixture into the prepared muffin tin, filling each cup about three-quarters of the way to the top.
Bake for 22 to 25 minutes until the egg muffins are set in the center and have a beautiful golden hue.
Allow the muffins to cool for 5 minutes before removing them from the tin to enjoy immediately or meal prep for later.