Leftover can be stored rapped in foil or in an airtight container for up to 3 days. Reheat in a 350°F oven for 5-7 minutes, until heated through and crisped. You can also heat it up in the microwave, but it will likely lose it's crispness. You can also store it in the freezer wrapped in plastic wrap or foil. Reheat it straight from frozen in a 350°F oven for 5-10 minutes, until warmed through and crisped.