From Longman Dictionary of Contemporary Englishreheatre‧heat /ˌriːˈhiːt/ verb [transitive] DFto make a meal or drink hot again I reheated some soup for lunch.→ See Verb table
Examples from the Corpus
reheat• To finish sauce, reheat in a saucepan and whisk in remaining 1 tablespoon butter.• Cook meals in advance and plate them up in the fridge, ready to reheat in the microwave.• Let cool, then reheat just before serving.• Steam pancakes briefly to reheat or wrap in plastic wrap and heat in microwave.• Gently reheat the dressing and spoon over.• Reheat the sauce before serving.• When ready to serve, reheat the soup to boiling point and pour into a heated tureen.• Add water during reheating to prevent scorching.• We strongly advise you against reheating your meal at a later time. 