Preheat your air fryer to 400°F (200°C) while you prep the nuggets.
In a bowl, combine the cooked chicken, egg, breadcrumbs, garlic powder, onion powder, salt, and pepper. Mix until well combined.
Using your hands, form the mixture into small nugget shapes or balls.
Place the nuggets in a single layer in the air fryer basket. Cook for about 8-10 minutes, until they are golden brown and heated through.
Allow to cool slightly before serving. My son recommends them be served with ketchup!