Preheat the air fryer to 400˚F/204˚C for 5 minutes.
Deseed pepper and cut into 1 inch pieces, peel and cut onion into quarters then separate layers, and wash and dry the potatoes (cut the potatoes in half they are bigger)
Toss peppers and onions in bowl with 1-2 teaspoons of oil
Place in air fryer basket. Add potatoes to air fryer basket and spray with oil
Cook at 370˚F/188˚C for 10-12 minutes. Stir at halfway point.
While cooking, prepare and cut sausage into thick, bite-sized pieces (I did it in quarters)
Add sausage into the air fryer basket and cook for an additional 10 minutes (If you cut your sausage into smaller pieces, cook for about 3-5 minutes) or until potatoes are cooked through.