The USDA recommends cooking stuffing outside the turkey, but if you're a sucker for extra flavor and tradition, you don't have to sacrifice safety. Don't over-pack the bird with stuffing–you may need to cook a little in a side dish in the oven. Fill the turkey with warm (not hot) stuffing and cook immediately. Once the turkey is done, remove the stuffing and check the temperature in several spots–you want to make sure it hits 165 degrees. If it's not hot enough, zap it for a few minutes in the microwave.