Heat the extra virgin olive oil in a medium cast-iron skillet over medium-high heat.
Add the diced yellow onion and red bell pepper to the skillet, sautéing for 5 minutes until they soften and begin to brown.
Add the ground turkey to the skillet, breaking it apart with a spatula.
Season the turkey and vegetables with sea salt, black pepper, smoked paprika, and garlic powder.
Cook the turkey until it is fully browned and no pink remains, then stir in the baby spinach until it is just wilted.
Reduce the heat to medium and create a small well in the center of the turkey mixture.
Whisk the egg whites in a small bowl and pour them into the skillet, stirring gently to incorporate them with the turkey and vegetables.
Crack the whole egg into the center well, cover the skillet with a lid, and cook for 3 to 4 minutes until the white is set but the yolk is still runny.