Cooking Instructions: Do not thaw. Keep frozen until ready to use. For safety. Must be cooked to an internal temperature of 160 degrees F as measured by use of a food thermometer. Oven: Yes, ovens take longer, but it tastes (and smells) better that way. One: Preheat oven to 375 degrees F. Remove calzone from overwrap and wrap with aluminum foil. Two: Place wrapped calzone on cookie sheet on center rack of oven (6-8 inch from heating element). Cook 1 calzone for 20-25 minutes. Three: Carefully remove from oven, and let stand for 2 minutes before serving. Microwave: Microwaves work, too. But would nonna approve? One: Remove calzone from overwrap. Two: Place calzone on a microwave safe plate and place in microwave. Cook 1 calzone per 1:30 minutes. Three: Carefully remove from microwave and let stand for 2 minutes before serving. Keep frozen & cook thoroughly.