Preheat your oven to 400°F (200°C) and lightly grease a small oven-safe baking dish with a touch of oil.
In a skillet over medium heat, sauté the lean ground turkey in the olive oil until browned and fully cooked through.
Add the diced red bell pepper, zucchini, and red onion to the skillet and cook for 5 to 7 minutes until the vegetables are tender-crisp.
Stir in the baby spinach, sea salt, black pepper, and dried oregano, cooking just until the spinach has wilted.
Transfer the vegetable and turkey mixture into the prepared baking dish, spreading it out into an even layer.
Pour the liquid egg whites evenly over the vegetables, then carefully crack the three whole eggs on top, keeping the yolks intact.
Sprinkle the crumbled feta cheese over the entire dish.
Bake for 12 to 15 minutes, or until the egg whites are set but the yolks remain slightly soft and jammy.
Garnish with chopped fresh parsley and serve immediately.