Halloumi is always best eaten straight after cooking, when it's warm and squidgy - otherwise it can become a little tough and chewy. But if you really do need to reheat this dish later, zap it in the microwave briefly, and it will regain a little of its squidginess.
Nutritional information is approximate, and will depend on your exact ingredients. Please calculate your own nutritional values if you require accuracy for health reasons.