A classic way to cook it is:
put it in a baking dish, and make a bechamel sauce for it.
http://www.foodnetwork.com/recipes/mario-batali/bechamel-...
Bechamel sauce is a French white sauce. Which can also be used for MANY things. Such as: making it with Endive. Get some endive, wrap deli ham around it, put it in a glass dish in nice neat rows. Then pour the bechamel sauce over it. Then bake it, until done and the endive is soft etc. Super yummy! To me, the bechamel sauce always tastes better when baked until the tops are toasty.
Or, use the Bechamel sauce over any cooked/baked veggies, or just to dunk good French bread into.
So anyway, with Cauliflower, what you do is, just stick the cauliflower in a glass baking dish. After you finish making the bechamel sauce, pour it over the cauliflower.
Then stick it in oven and bake it at like 350 degrees... until it is soft.
The bechamel sauce will brown on top... and that to me is so yummy.
Its a great french dish. Easy. Yummy. My kids like it too.
In my family, my Husband makes it. It being his thing.
all the best,
Susan