Preheat the oven to 350°F and prepare the loaf pan by spraying it with avocado oil or lining it with parchment paper.
Add the zucchini to a blender and blend until minced.
Add the remaining ingredients (gluten-free flour, eggs, cacao powder, peanut butter, applesauce, honey, vanilla extract, cinnamon, baking soda, and sea salt), minus the chocolate chunks, to the blender and blend until just combined.
Stir in the chocolate chunks with a spatula.
Add the batter to the prepared loaf pan and bake for 40 to 45 minutes.
Remove from the oven and let it cool before slicing into the loaf. ENJOY!