Preheat your oven to 350 degrees. Using non-stick baking spray, spray a full sized bundt cake pan and then lightly dust with cocoa powder and knock out any excess. This will help to ensure your bundt cake releases beautifully.
In a large mixing bowl, mix/whisk together the flour, hazelnut meal, salt, baking powder, baking soda, cinnamon and nutmeg. Set aside.
In a separate large mixing bowl, whisk together the eggs, avocado oil, applesauce, sugar and vanilla until light and fluffy, for about 2 to 3 minutes. Using a rubber spatula, slowly fold in the flour mixture into the wet ingredients just until combined. Lastly, gently mix in the grated zucchini and the chocolate chips.
Pour the cake mixture evenly into your prepared bundt pan and bake for 60 minutes, or until a toothpick inserted comes out clean. Remove the bundt cake from the oven and allow to cool for about 20 minutes.