Prep Zucchini. If you haven't already, place grated zucchini in paper towels or a clean kitchen towel. Squeeze all the excess moisture out of the zucchini. (You don't want it wet!)
Combine. In a large bowl, mix together chicken, zucchini, green onion, cilantro, garlic, salt, pepper, and cumin (if using). Mixture will be quite wet.
Scoop & Shape Meatballs. Next, scoop meatballs with a small scoop or heaped tablespoon and gently smooth with your hands. I can usually get around 20-24 poppers. You may be able to get more or less, depending on how large you size them.
To Cook On The Stovetop: Heat a drizzle of oil in a medium pan over medium-low heat. Cook 4-5 at a time for about 5-6 minutes on the first side. Flip and cook an additional 4-5 minutes, or until golden brown and the centers are cooked through.
To Bake: Preheat oven to 400 degrees. Drizzle a bit of olive or avocado oil onto a baking sheet lined with foil. Bake at 400 degrees 15-20 minutes, or until cooked through. If desired, place under the broiler for an additional 2-3 minutes or until browned on top.
Serve & Store. Enjoy warm with guacamole, salsa, ranch, or your favorite dip! Store leftovers in an airtight container in the fridge 3-4 days.