Preheat oven to 400 degrees F. Line a baking sheet with parchment paper; set aside.
In a large bowl, combine ground chicken, bread crumbs, egg, garlic and onion powder and green onions; season with salt and pepper, to taste. Using a wooden spoon or clean hands, stir until well combined. Roll the mixture into 1 to-1 1/2-inch meatballs, forming about 24 meatballs.
Place meatballs onto prepared baking sheet and bake for 4-5 minutes, or until all sides are browned.
Place meatballs into a slow cooker. Add buffalo sauce and gently toss to combine. Cover and cook on low heat for 2 hours.
Serve immediately, drizzled with blue cheese or ranch dressing, if desired.Gluten Free
Use Gluten Free Bread Crumbs & buffalo sauce