Preheat your oven to 375°F and lightly grease a small baking dish with a touch of olive oil.
In a skillet over medium heat, add the olive oil, diced onion, and red bell pepper, sautéing until softened.
Add the ground turkey to the skillet, breaking it up with a spatula and cooking until browned and no longer pink.
Stir in the fresh spinach and cook for 1 minute until just wilted, then remove the skillet from the heat.
In a medium bowl, whisk together the eggs, egg whites, sea salt, black pepper, garlic powder, and dried oregano.
Spread the turkey and vegetable mixture evenly into the prepared baking dish.
Pour the egg mixture over the turkey and vegetables, ensuring everything is submerged.
Place the dish in the oven and bake for 20 to 25 minutes, or until the center is set and the top is lightly golden.