Add all ingredients into a large bowl. Combine gently with your hands, but do not overwork.
Roll into small balls approximately 1.5 inches large, making about 15 meatballs.
Brush air fryer basket with oil and add the meatballs. Leave space for air to move around meatballs as they cook. (You may have to do multiple batches.)
Air fry for 9-12 minutes at 400°F. Flip halfway through.
Remove when the internal temperature reads at least 165°F at the center.