Add whole package of frozen cauliflower to a microwave safe bowl and microwave for 3-5 minutes. You want the cauliflower to be soft enough to work with but not mushy. It's okay if it's still somewhat frozen.
Stir cauliflower and break apart any frozen chunks.
Add to the food processor. Pulse for a few seconds until you get a rice like consistency. Don't overdo it or you'll have a puree.
Add salt to taste. Place cauliflower back in the microwave and cook for 4-5 minutes more, stirring halfway though.