Line 1/2 your air fryer basket with baking paper so the broccoli won't fall through the holes. Cover with frozen broccoli in a single layer. Place chicken on the wire next to the broccoli making sure the chicken is spread out in a single layer.
Set the air fryer to 200C (400F). Cook for 10 minutes.
When the timer goes, check the chicken. - it may need a few minutes longer depending on how thick the fillets were.
for OVEN
Turn your oven to 250C (480F). Line a rimmed baking sheet with paper.
Place chicken on the tray. Place the frozen broccoli next to the chicken.
Pop tray in the oven and set your timer for 12 minutes. Put your feet up.
When the timer goes, check the chicken. - it may need a few minutes longer depending on your oven.
To serve (both methods)
Mix tahini with 2 tablespoons water and a pinch of salt to make the sauce.
When the chicken is cooked and the broccoli is hot. Place in a bowl. Drizzle over the tahini sauce.
Sprinkle over roast pistachios and preserved lemon (if using).