Well I'm currently at 95% grain free but sometimes you just want rice, so when I stumbled upon a recipe that simulated rice using cauliflower I thought it was worth my time and curiosity to try. You definitely need a really good food processor or blender to make this happen properly but the process is fairly simple.
Chop up a raw head of Cauliflower put it in your food processor and pulse. You want a small mashed consistency and not mush; once you get started you'll understand the difference.
Once you have it all blended up into "rice" You can put it in the refrigerator covered to stir fry later or immediately turn on your burner and fry it up. Mix in any additional vegetables you want; I did mushrooms and spinach, some fresh herbs and onions. It looks like rice, kind of. Overall this was good.
Original recipe came from Models Do Eat