Preheat your oven to 350°F and lightly grease six wells of a standard muffin tin with a touch of oil.
In a skillet over medium heat, cook the ground turkey in olive oil until browned and crumbled.
Add the sea salt, black pepper, garlic powder, and onion powder to the turkey, stirring to incorporate the aromatics.
Toss in the diced red bell peppers and chopped spinach, sautéing for 2 minutes until the greens are just wilted.
In a medium bowl, whisk together the whole eggs and liquid egg whites until the mixture is smooth and uniform.
Distribute the turkey and vegetable mixture evenly among the prepared muffin cups.
Pour the egg mixture over the fillings in each cup, leaving a small amount of space at the top for rising.
Bake for 20 to 22 minutes or until the centers are firm and the edges are a light golden brown.