Preheat your oven to 375°F (190°C) and lightly grease a small oven-safe baking dish with a touch of olive oil.
Place a skillet over medium-high heat and add the extra virgin olive oil.
Add the diced yellow onion and diced red bell pepper to the skillet, sautéing for 3-4 minutes until softened.
Add the ground turkey to the skillet, breaking it into small crumbles with a spatula, and cook until fully browned and no longer pink.
Stir in the fresh baby spinach and cook for 1 minute until the leaves are just wilted, then remove the skillet from the heat.
In a medium mixing bowl, whisk together the large eggs, egg whites, sea salt, black pepper, garlic powder, and dried oregano until the mixture is uniform.
Transfer the turkey and vegetable mixture into the prepared baking dish, spreading it out into an even layer.
Pour the egg mixture over the turkey and vegetables, ensuring the liquid fills all the gaps.
Bake in the center of the oven for 20 to 25 minutes, or until the eggs are set and the top is lightly golden brown.
Remove from the oven and let the bake rest for 5 minutes before slicing and serving warm.