You can of course purchase pre-packaged cauliflower rice from the grocery store, but it's a lot less expensive to make it yourself! Purchase a start by chopping a head of cauliflower in half. Take one half and chop it into small bite size pieces. Add about two cups of chopped cauliflower into your food processor. Pulse on and off until it becomes a rice consistency. (Takes about 30 seconds.) Repeat until you have enough for the recipe!