Step 1: Preheat your oven to 350°F (175°C) to ensure even baking.
Step 2: Line a muffin tin with paper liners or lightly grease it with coconut oil.
Step 3: In a large mixing bowl, whisk together the almond flour, coconut flour, baking soda, and pumpkin pie spice until well combined.
Step 4: In another bowl, beat the eggs and then add the Greek yogurt and sugar. Mix until smooth.
Step 5: Stir the shredded zucchini into the wet mixture, ensuring even distribution.
Step 6: Pour the wet ingredients into the dry ingredients and gently fold together with a spatula until just combined.
Step 7: Scoop the batter into the prepared muffin tin, filling each cup about three-quarters full.
Step 8: Bake for 20-25 minutes, or until a toothpick inserted comes out clean.
Step 9: Let muffins cool in the tin for 5 minutes before transferring to a wire rack to cool completely.