Cook the sausage in a large skillet. Remove the sausage from the pan. Drain most of the grease, reserving about a tablespoon. Add mushrooms, celery, and peppers to the pan and saute until water from mushrooms is gone. Combine all ingredients in large bowl and mix together. Stuff into the turkey. Bake turkey as you normally would.

Pretty simple, and very tasty. I will note that I am on a very tight budget, so I picked up one of the Uncle Ben's packages of rice which has the long grain and wild rice all in one box, then added some plain white rice I had at home.