Slice your peppers and onions into large chunks. I like larger pieces, as they don't catch and burn while cooking.

Add your chicken mini fillets to a bowl. If you're using chicken breast then cut into strips or chunks.

Shake the fajita seasoning over the top of the chicken breast and rub it in well until everything is well coated. I like to use a tiny bit of spray oil on the breasts first, but you can skip this step if you want.

Add the coated chicken fillets or chunks to the Ninja Foodi air fryer basket.

Air fry at 200C (400F) for 10 minutes.

Add the onion and peppers, shake the basket well or use a wooden spoon to combine.

If the basket of your Ninja Foodi is quite full then you'll want to shake up 5 minutes into the cooking time.

Check that your chicken has reached a safe internal temperature before serving. This is a minimum of 74C (165F approx).

I love to add my favourite dressing when serving; salsa, guacamole and sour cream. These all work great and bring some extra flavour to this lovely dish.

You can add a squeeze of lemon or lime over the top if you want to enhance the flavour further.