To keep this casserole keto-friendly, use a food scale to portion the sweet potato tots and stick to the listed amount, avoiding brands with added sugar, flour, or starchy fillers that can increase carbs significantly. If you prefer an even lower carb count, reduce the tots to 6 ounces and fill any gaps with extra shredded cheese. This dish reheats well, so store leftovers in airtight containers in the refrigerator for up to 4 days and reheat in a 350°F oven or air fryer to re-crisp the tots. For freezing, assemble the casserole through adding the cheese layer, cool completely, wrap tightly, and freeze, then add the tots just before baking so they stay crisp. Always calculate net carbs based on the specific brand of sweet potato tots you use, as nutritional values can vary.