Banana Chocolate Zucchini Muffins

Combine all dry ingredients in a bowl. In a separate bowl, mash the banana and add all other wet ingredients. Gradually add the wet mixture to the dry mixture and stir until just combined. Gently fold in the grated zucchini and chocolate chips. Pour the batter into muffin liners. Bake at 350°F (175°C) for 12-16 minutes, or until a toothpick inserted into the center comes out clean.