COOKING INSTRUCTIONS. SLOW COOKER: Place cooking bag with frozen turkey in the bottom of the slow cooker. CONSUMER OVEN: Preheat oven to °F. Remove frozen turkey from white outer package. NOTE: NOTE: APPROXIMATE OVEN ROASTING TIMES: UNDER 3 POUNDS FROM FROZEN: OVER 3 POUNDS FROM FROZEN: OVER 3 POUNDS FROM THAWED. Nov 19, - "Once a frozen turkey is thawed, it should be cooked within two days," Hanes said. with the raw turkey are sanitized and make sure to wash your hands. places: the thickest part of the breast, the innermost parts of the wing.