There are entire cookbooks written just about it and you can make countless festive, dietary, or high-fat dishes from it, it is suitable for every meal and every situation even as a snack: Cauliflower
How to use cauliflower
I recommend using cauliflower as a filling addition during a diet, on its own or in quiches with added eggs and cheese, or as a soup, I have recipes for fresh cauliflower salad, and even just baked in the oven it will always come out tasty.