Preheat oven to 400 degrees.
Toss the cauliflower florets with olive oil and salt and pepper.
Cut of one end of the garlic bulb and place in aluminum foil.
Add some oil to the garlic and close in foil.
Place florets and garlic bulb on baking pan and bake for 45-60 minutes until florets are golden.
Add florets to a food processor.
Squeeze garlic cloves out of bulb and into food processor.
Add butter and sour cream and pulse until resembles rice.
Stir in grated and chunked provolone, salt and pepper.
Top with fresh chopped parsley.