Preheat your oven to 300°F and lightly grease a 12-cup silicone muffin tin with avocado oil.
In a skillet over medium heat, cook the turkey bacon until crisp, then remove and chop into small bits.
In the same skillet, quickly sauté the baby spinach until just wilted, then squeeze out any excess moisture using a clean kitchen towel.
In a high-speed blender, combine the eggs, liquid egg whites, cottage cheese, sea salt, black pepper, garlic powder, and onion powder.
Blend on high for 30 seconds until the mixture is completely smooth and aerated for a light, fluffy result.
Divide the chopped turkey bacon, wilted spinach, and crumbled feta cheese evenly among the 12 muffin cups.
Pour the blended egg mixture into each cup, filling them about three-quarters of the way to the top.
Place the muffin tin inside a larger baking dish and fill the outer dish with 1 inch of hot water to create a steam bath.
Bake for 25 to 30 minutes until the centers are set but still slightly jiggly to the touch.
Allow the bites to cool for 5 minutes before removing from the tin to maintain their shape and moisture.