Preheat the oven to 375 F and line a 12 cup muffin pan with 7-8 muffin liners. Spray with cooking spray like avocado oil spray and set aside.
Using a large mixing bowl, combine the flax and water and stir to combine. Allow to sit for 5 minutes.
Add the pumpkin puree, zucchini, maple syrup, and coconut oil. Stir to combine.
Combine the dry ingredients in a separate bowl. Pour in the wet ingredients and mix well to combine. Fold in the chocolate chips.
Fill the muffin liners about 3/4 of the way full with batter. Top off with a few more chocolate chips if desired.
Bake in the oven for 30 minutes or until a toothpick inserted comes out clean.
Remove from the oven and allow to cool completely (set for 1-2 hours in the fridge if gelatin egg is used) before serving.