Preheat oven at 350 F. Spray a 8×5 inch pan with nonstick spray.
In a large bowl, stir together flour, cocoa, chocolate pudding, baking soda, baking powder and salt.
In a medium bowl, whisk together the sugar and eggs then add in the oil, milk and vanilla.
Add wet ingredients to the dry ingredients.
Fold in the zucchini and chocolate chips just until combined pour into loaf pan.
Bake for 50-60 minutes, or until toothpick comes out clean.
Cool for 15 minutes before removing from pan to cool completely.
Sprinkle with powdered sugar