Preheat oven to 350 degrees
Grease the bottom of an 8x4x2" loaf pan and set aside
In a medium bowl, combine flour, cinnamon, baking soda, baking powder, salt and nutmeg. Make a "well" in the center of the mixture and set aside
In a second medium bowl, combine sugar, egg, zucchini, and oil. Mix well.
Add the zucchini mixture to the flour mixture. Combine just until moistened. The batter will be lumpy.
If using, fold in chocolate chips and/or walnuts/pecans.
Pour mixture into loaf pan and bake for 50-55 minutes, or until toothpick inserted in the center comes out clean.