In a bowl, toss cauliflower florets with onion powder, garlic powder, parsley, oil, chili powder, turmeric, cumin, pepper, and salt.
Insert a crisper plate in the Ninja Foodi air fryer baskets.
Add cauliflower florets in both baskets.
Select zone 1, then select “air fry” mode and set the temperature to 200°C for 12 minutes. Press “match” to match zone 2 settings to zone 1. Press “start/stop” to begin. Stir halfway through.
