1) Lightly grease two bread pans and preheat oven to 350 degrees.
2) With a mixer, beat sugar and maple syrup or honey together with Greek yogurt. Add eggs one at a time, beating well after each. Add vanilla and mix.
3) In a separate bowl, combine all the dry ingredients together. Add to wet ingredients and gently mix. Fold in oil, zucchini and 1/2 chocolate chips.
4) Sprinkle remaining 1/2 cup chocolate chips combined with 2 tbsp sugar over the top. Bake about 30 minutes or until toothpick comes out clean. Do not over-bake. Enjoy!