1Preheat oven to 375°F and line a baking sheet with parchment paper.
2Heat a skillet over medium high heat. Add 1/2 tablespoon avocado oil, onions, garlic and spinach. Let cook until onions are softened and spinach has wilted. Stir occasionally.
3Whisk eggs until smooth and season with salt and pepper.
4Add in the spinach mixture, almond flour, coconut flour, baking powder and 1/2 cup cheese. Stir until a thick batter forms. Let sit for about 5 minutes.
5Scoop batter onto the baking sheet (about 2 tbsp per biscuit). Top with a sprinkle of shredded cheese.
6Bake for 18-25 minutes, until golden and firm to the touch