Preheat oven to 375° F.
Add 1 slice of bacon to each muffin cup of your muffin tin. Make sure to wrap it in a circle around the muffin tin. Place in oven and bake for 10 minutes. While the bacon cooks, heat ghee in a skillet over medium heat. Add spinach to the skillet and allow to wilt, about 2-3 minutes.
Prep your eggs: Whisk together 8 eggs, milk, garlic powder, salt and pepper.
Remove bacon from the oven. Fill the bacon cups with spinach. Then pour the egg mixture over the spinach filling each cup 3/4 of the way full. Top with feta and place back in the oven for 18-22 minutes.
Allow to cool slightly, serve with sliced avocado, fruit or gluten free toast.