For the best texture, always squeeze out extra moisture from the cauliflower rice so the cheese sauce stays creamy instead of watery. Freshly shredded cheese melts more smoothly than pre-shredded cheese coated in starches, which can add unwanted carbs. This dish reheats well on the stovetop over medium-low heat with a splash of cream or a small pat of butter to bring back its silky texture. Keep leftovers in an airtight container in the refrigerator for up to 3 or 4 days. To turn this side into a full meal, stir in cooked bacon, diced grilled chicken, or sautéed mushrooms while folding in the cheese.