In a bowl, whisk together the flours, baking soda, baking powder, and salt.
Add in the zucchini, cheese, and scallions and toss to coat.
In a small bowl, whisk together the buttermilk and eggs. Add to the flour mixture and stir until just combined. Do not over mix. Pour the batter into a greased loaf pan and bake for 55-60 minutes, or until a wooden toothpick inserted in the center comes out clean.
Cool and serve.
* Loaves can be cooled, wrapped in plastic wrap or foil, placed in freezer bags, labeled and frozen for up to 3 months. Place in refrigerator overnight to defrost.