Preheat oven to 325 degrees F. Grease a loaf pan with nonstick cooking spray.
In a small bowl, make flax egg by combining the ground flaxseed and water. Set aside to gel up for 5-10 minutes.
In a medium bowl, whisk together the flour, baking soda, salt, cinnamon, and nutmeg.
In a large bowl, whisk zucchini, pure maple syrup, flax eggs, almond milk, and vanilla extract until smooth. Then add the coconut oil and whisk to combine.
Add the dry ingredients to the wet ingredients and mix with a wooden spoon or spatula until just combined. Be careful NOT to overmix. Fold in walnuts.
Pour into prepared loaf pan and bake for 55-65 minutes until tester comes out clean. Transfer to wire rack to cool for 10 minutes, then remove bread and place on wire rack to cool completely. Cut and enjoy!
(Recipe adapted from Ambitious Kitchen)