Step 1

Preheat oven to 375 °F.

Step 2

Cut cauliflower into small pieces. Steam in a saucepan until soft. Strain out and discard the water.

Step 3

Whisk the cream and cream cheese in the saucepan over medium heat until smooth. Stir in 1½ cups shredded cheese (save the other ½ cup to sprinkle on top). Continue warming until sauce is smooth and thick. Season with salt, pepper, and optional mustard or garlic.

Step 4

Arrange the cauliflower in an 8x8-inch or 2 quart oval baking dish. Pour the sauce over and mix to combine.

Step 5

Top with remaining ½ cup cheese and bake for 15-20 minutes, until brown and bubbly.

Step 6

Cool slightly and serve warm.