Preheat oven to 375ºF and coat an 8×8 baking dish with butter or non stick spray.
Cut cauliflower into small 1/2″ to 1″ pieces. Steam for 4-5 minutes until barely tender. Remove from heat and drain well. Pat dry with paper towels. Set aside.
In a small pot, combine heavy cream, cheeses, cream cheese, salt, pepper, and paprika. Heat under medium fire until smooth. Stir well.
Add cauliflower to cheese mixture and toss to coat.
Pour into baking dish and bake for 25-30 minutes until the top is golden brown and bubbly.