Cut onion and celery very fine and saute in butter until tender.  Add to bread crumbs.  Add salt, pepper, parsley, and nuts.  Stir until well mixed.  Stuff a 12 - 16 pound turkey.  Bake turkey according to directions.  Remove from turkey and serve as a side. 

This is a family receipe that everyone loves.  Make your bread crumbs using week old hamburger buns.  Take the two halves of a bun and rub together.  I usually use about 1 1/2 pkgs. of buns.  Stuff both the chest cavity and under the neck flap.