Cut the chicken breast in half horizontally to create thinner, even pieces.
Pat dry the chicken and season lightly with salt and pepper.
Rub pesto and olive oil over the chicken evenly. Let it marinate for 10–15 minutes if you have time.
Place chicken in the air fryer basket in a single layer.
Cook at 180°C for 14–18 minutes, flipping halfway through.
Internal temperature should reach 75°C (165°F).
Serve hot, with a side salad and some potato wedges to complete the meal (separate recipe for potato wedges are on my website).