You can make the raw cauliflower rice and store it in an airtight container for up to 5 days in the fridge. However, if air gets in, you may start to see it turning brown, so just keep an eye on it. You can cook the cauliflower rice and cheese and store it in an airtight container in the fridge also for up to 5 days. To warm it, place it in a pan on the stove and add a splash of water if needed to help loosen it. Warm over low-medium heat for 5-10 minutes.