
In a large bowl, mix the cauliflower florets with olive oil, salt, ground black pepper, and grated Parmesan cheese until evenly coated.
Transfer the cauliflower to your air fryer basket in a single layer. Air fry at 200°C (400°F) for 8 minutes.
Shake the basket and gently flip the cauliflower, then air fry for another 2–4 minutes, until the edges are golden and crisp.
Plate the cauliflower and drizzle any dripping from the air fryer basket over the top, if you like. Garnish with chopped parsley or chives, if desired.