Cut the cauliflower head into small florets. Try to make them even-sized. This will allow for more even “ricing”.
When making bigger amounts of cauliflower rice, or of you are using a small food processor, start by placing only about half of the cauliflower florets in your food processor. Pulse a few times until it resembles corse “rice” grains. Set aside in a bowl and repeat with remaining florets. Don’t overcrowd the food processor otherwise, the rice grains won’t be even.