Step 1

Slice chicken breast against the grain and place in a mixing bowl with fajitas seasoning and 2 tsp of olive oil. Stir to combine. (Marinate for up to 24 hours in the fridge).

Step 2

Brush olive oil on the basket of the air fryer. Add seasoned chicken. Set mixing bowl aside.

Step 3

Set air fryer to 400 degrees F and cook for 5 minutes.

Step 4

Meanwhile, add sliced onions and peppers to the now-empty mixing bowl, and add 1 tsp olive oil. Stir to coat veggies in oil, removing any fajitas seasoning from the sides.

Step 5

Add onions and peppers to the air fryer, and stir the chicken to redistribute.

Step 6

Cook for an additional 8 minutes, or until a meat thermometer registers 165 degrees F when inserted into the thickest strip of chicken.