Possible Clues:

• Prepared leftovers
• Readied, as leftovers
• Ginger wraps he had put in the microwave?
• Warmed in the 'wave
• Got cross all over again at being put back in the oven
• Given energy again ere death possibly
• Warmed, as leftovers
• Put back on the range
• Not freshly made
• Prepared leftovers, in a way