Combine the sunflower seed flour, salt, and Italian seasoning in a shallow bowl.
Turn the air fryer on to 375° and remove the wire rack (if using the Cuisinart one).
Coat the chicken with the oil and dip it in the flour mixture, pressing onto the chicken to coat evenly. Place on the wire rack, spray with a little 100% avocado oil if you have it.
Cook for 6 minutes, flip and then cook for 4 more minutes. If there are thicker pieces, remove the smaller ones and let the thicker ones cook for an additional 2 minutes.
Reheat leftovers by cooking them in the air fryer for 3 minutes at 375°.