How To Cook Frozen Cauliflower Rice Without A Microwave. Well, the same can be done with cauliflower rice (or cauliflower florets, for that matter). Heat a large skillet over medium heat.

Spoon the riced cauliflower into 3 quart sized. Cooking cauliflower rice this way, produced the exact same results as the above way, just without using the microwave. Place a plate over the bowl and microwave for 3 to 4 minutes, depending on how much bite you like in your cauliflower and how powerful your microwave is.