Cook to an internal temperature of 165° F.Microwave From Frozen:
Remove tray from sleeve. Place a small slit in the center of the film. Place in microwave and cook on defrost for 7 minutes. Microwave on HIGH for 5 minutes. Remove from microwave, peel film back and stir. Heat on HIGH for an additional 3 minutes. Remove and stir. Allow to rest for 3 to 5 minutes before serving.Bake From Frozen:
(recommended) Preheat oven to 425° F. Remove tray from sleeve and discard film. Place frozen mac and cheese tray onto an oven safe dish or baking pan. Bake for 40 to 50 minutes. Allow mac and cheese to rest for 3 to 5 minutes before serving.