Preheat your oven to 400°F (200°C).
In an oven-safe skillet, heat the olive oil over medium heat.
Add the diced onion and bell pepper, sautéing for 4-5 minutes until softened.
Stir in the minced garlic and ground turkey, cooking until the turkey is browned and cooked through.
Add the cherry tomatoes and dried oregano, cooking for another 5 minutes until the tomatoes begin to burst and release their juices.
Stir in the baby spinach until just wilted.
Use a spoon to create three small wells in the mixture and carefully crack one egg into each well.
Sprinkle the feta cheese, sea salt, and black pepper over the top.
Transfer the skillet to the oven and bake for 10-12 minutes, or until the egg whites are set but the yolks remain runny.
Remove from the oven and serve immediately with a side of nonfat Greek yogurt for added creaminess.