Just wanted to share.  I made this today, loved it.  Modified from a recipe I found online.  I think it would be good with broccoli too.  I will try that next time.

Baked Cauliflower Casserole

Ingredients

Directions          Preheat oven to 350 degrees.

1 Steam cauliflower florets in about 1/2 inch of water in a covered dish in the microwave, about 6 minutes or until tender.

2 While cauliflower steams, melt butter over low heat in a heavy-bottomed 2-quart sauce pot, and lightly sauté onion for 2 minutes, until soft. Slowly pour in 1 cup heavy whipping cream. Add Dijon mustard, stirring mixture well.

3 Stir in 2 cups shredded cheese, stirring until melted and smooth. Remove from heat.

4 Stir in bacon pieces, salt and pepper. Add cauliflower and fold cauliflower into sauce.

5 Scrape into a sprayed (Pam) 2-quart casserole dish.

6 Bake at 350 degrees in preheated oven for 15-20 minutes, until bubbly. Broil a few minutes when done to get desired color on top.

Have you got a breakdown on calories, fats, etc.  With all the cheese and heavy cream, most of us will either dum*****t be able to eat it....I know I would not be able to.....