Preheat air fryer to 400 degrees. Cut cauliflower into bite size florets and put into a bowl. Pour 1.5 tbsp of olive oil on top and mix/rub on with hands, then pour on remaining oil and continue to rub it on every piece so they're lightly coated.
Sprinkle on all seasonings and again mix/massage the florets gently with your fingers so every piece is coated.
You're air fryer should have preheated for at least 5 minutes at this time. Put half your cauliflower into your air fryer basket, so they're not overlapping and set time for 15 minutes.
Every 5 minutes lift the lid and use a wooden spoon to flip pieces gently so the other side can crisp up as well.
After 15 minutes is up and you've flipped them twice serve as is or with some dipping sauces!