Preheat oven to 375spr F and prepare a 12-cup muffin tin by either lining or lightly spraying it with nonstick spray.
Mash the bananas with a fork in a medium bowl and set aside.
In a large bowl, combine, gluten-free all purpose flour, almond flour, sugar, baking powder, cinnamon, nutmeg, salt.
In another bowl mix almond milk, coconut oil, ground flaxseeds, vanilla. Combine dry ingredients with wet ingredient and mix thoroughly. Fold in mashed bananas into the batter.
Spoon batter into prepared muffin cups and sprinkle tops with extra sugar if desired. Bake for about 30 minutes or until a toothpick inserted in the middle of a muffin comes out clean. Allow muffins to cool for about 10 minutes before removing from the pan. Enjoy!