Preheat your oven to 375°F (190°C) and lightly grease a small oven-safe baking dish.
Heat the olive oil in a skillet over medium heat and add the ground turkey, breaking it up with a spatula until browned and cooked through.
Add the diced bell peppers to the skillet and sauté for 3-4 minutes until they begin to soften.
Stir in the fresh spinach and cook just until the leaves are wilted, then remove the skillet from the heat.
In a medium mixing bowl, whisk together the whole eggs, egg whites, sea salt, black pepper, garlic powder, and dried oregano until well combined.
Spread the turkey and vegetable mixture evenly across the bottom of the prepared baking dish.
Pour the egg mixture over the turkey and vegetables, gently shaking the dish to ensure the eggs settle into all the crevices.
Place the dish in the oven and bake for 20-25 minutes, or until the center is firm and the top is a beautiful golden brown.