Make stuffing mix on stove according to package.

Once it is ready, mix in the cooked turkey. You could also shred the turkey if you don't want to cube it. Use white meat, dark meat, or a mixture.

Make the roux my melting the butter and sauteing the celery for a few minutes. Then add the flour and cook for about another minute. Add the milk and allow to cook for a few minutes. Mix this into the stuffing mixture.