Cut off the ends of the zucchini. Then, grate the zucchini with a regular-sized grater or food processor. Then, place the grated zucchini on paper towels and remove all of the excess moisture from the zucchini.
Add the eggs, unsweetened applesauce, almond milk, and vanilla extract to a large bowl. Mix all of these wet ingredients together.
Sift the flour, cocoa powder, salt, baking powder, and baking soda into a separate bowl. Then add these dry ingredients to the bowl with the wet ingredients until combined.
Add the sugar to the bowl and mix. Make sure all of the dry and wet ingredients are combined but don’t overmix the batter.
Fold in the grated zucchini and mini chocolate chips.
Lightly spray a non-stick silicone muffin pan with oil. Or, place muffin liners in a muffin tin. Then, pour the batter into the muffin pan or liners to make 12 muffins. Optional: Add some mini chocolate chips on top. Bake the muffins at 350°F for 24-28 minutes, until fully cooked. Once cooked, let them slightly cool, and enjoy!