Preheat the oven to 400 degrees and lightly grease a 9×13 baking dish.
If air frying instead, spray air fryer with non-stick spray.
In a large bowl, combine all ingredients except for the buffalo sauce. They'll form better if not overmixed.
Scoop about 1 Tablespoon of mixture, roll into a ball, and place in the baking dish. Continue until all mixture is used. (I like to keep the balls small so they cook more thoroughly and take less time.)
If baking in the oven, bake at 400 degrees for about 20 minutes or until the internal temperature reaches at least 165 degrees F.
If cooking in air fryer, place meatballs in the air fryer and air fry at 400 degrees for about 10-12 minutes.
Pour buffalo sauce into a large bowl and toss meatballs to coat. Top with green onions and serve with ranch or blue cheese if desired.