- The Royalford Deluxe Insulated Casserole Thermal Hot Food Container makes every meal feel special. Royalford casserole has a unique design intended to create a striking and attractive look whilst attaining the ultimate in the art of serving food. Keeps food warm for long hours, making the set ideal for picnics, travelling or just home use. The cylindrical shape makes each hot pot perfect for maximizing volume and practical for storage.Ensures the food inside maintains its thermal temperature over a period of time allowing you to eat warm meals without having to reheat your food and therefore preserving healthy nutrients and tastes. When you have finished cooking your delicious meal simply pop your spare food into these food containers designed to help keep food warm. The same applies to cold food; if you have prepared a salad and want it to keep cold but there is no room in the fridge, just pop it in one of the insulated dishes!