Preheat oven to 350 degrees F.
Spray muffin tin with cooking spray, or place liners in muffin tin.
In medium bowl, combine flour, baking powder, baking soda, cinnamon, and salt, and stir well to combine.
In large bowl, whisk together egg, maple syrup, milk, coconut oil, and vanilla until well combined.
Stir in flour mixture until just combined.
Fold in shredded zucchini.
Fill muffin pan 3/4 of the way full.
Bake in preheated oven for 16-18 minutes, until muffins are slightly golden and toothpick comes out with just a few crumbs.
Serve and enjoy!