Cut end of cauliflower off and remove leaves. If adding olive oil and herbs cut into middle of head and remove a quarter size piece so seasoning can later seep in.
Pour water into pressure cooker and lower down a trivet. Put head of cauliflower on trivet.
Close lid and steam valve and set to high for 2 minutes.
Do a quick release when done. Can take out, slice and enjoy now or proceed on.
If you have a Ninja Foodi you can do the next steps right in the pot. If not transfer to a baking dish and turn broiler on.
Whisk together olive oil and all spices listed above. Pour this on top of your cauliflower in the middle so some can be absorbed within. Then sprinkle parmesan on top of everything.
Close air crisp lid of Foodi and set to 390 degrees for 8 minutes so top gets golden brown, then serve. If using broiler leave in for approx. 5 minutes or until top is as golden as you'd like. Cut into pieces and serve!