Preheat your oven to 350°F (175°C) and lightly grease a silicone or metal muffin tin with the olive oil.
In a small skillet over medium heat, cook the ground turkey until browned and fully cooked through, then set aside to cool slightly.
Finely chop the fresh spinach and crumble the feta cheese.
In a blender, combine the eggs, egg whites, cottage cheese, sea salt, black pepper, and garlic powder; blend on high for 30 seconds until the mixture is completely smooth and aerated.
Stir the cooked turkey, chopped spinach, and crumbled feta into the egg mixture by hand.
Divide the mixture evenly among the muffin tin slots, filling each about three-quarters of the way to the top.
Bake for 20 to 25 minutes, or until the egg bites have risen and the centers are firm to the touch.
Allow the bites to cool in the pan for 5 minutes before gently removing them with a rubber spatula.