Microwave: Heat in microwave according to label instructions for 2:00 minutes. check temperature and heat in additional 30 second increments until at least 160 degrees. Oven: Preheat oven to 325F. Remove from outer sleeve and place tray on a baking sheet. Heat for 15-20 minutes or according to instructions to an internal temperature of 160F. Microwave and oven safe. Ready to heat trays. Completely defrost (thaw) your meals prior to heating. Microwaves come in all different powers making firm reheating times challenging. It heats very rapidly, but it can very quickly overcook any or all components of your dish. Better Reheated Method: Heat your meals the least amount of time to get just hot enough. Do this by initially heating your meal for half the time indicated and then heat in small increments of 15 to 30 seconds at a time and checking each time if your meal is hot enough.