I stole this one from a friend who's husband got it from NPR. I'm not a huge cauliflower fan, but I'd like to give this a try to see if I can turn my child into a fan.
Preheat oven to 400 deg. As thinly as possible, slice a head of cauliflower keeping as much as the cross section in tact as possible. Place cauliflower on a cookie sheet and drizzle with olive oil and season with salt and pepper. Roast in the oven for about 40 minutes or until cauliflower is soft and edges are crisp and golden.