Add the ground turkey, onion, peppers, garlic, egg, pork rind crumbs, Italian seasoning, and salt and pepper to taste to a large mixing bowl, and knead with your hands until well combined.

Form the meat mixture into evenly sized meatballs, place into a well-greased air fryer tray and Air fry at 400 degrees for 12-15 minutes or until browned and cooked through.

Stir together the sugar-free ketchup and Brown sugar substitute, brush the mixture onto the top of the meatballs, and return them to the air fryer for another 1-2 minutes before serving.