Sausage Stuffing

1 Box Stove Top brand stuffing mix, Chicken or Pork (NOT Turkey)
1 stalk of celery, minced
20 mushroom slices
1/2 onion, minced (3 shallots are good too)
1/2 kb of ground pork or sausage, mild
Enough butter to cook the stuffing.

Fry sausage. Remove sausage from pan, add mushrooms. Cook 2 minutes. Add onion. Cook another 3 minutes. Set aside. Cook Stove Top stuffing to box instructions substituting butter for margarine and subtracting 1/2 cup of water. Add celery to hot stuffing. Gently mix until incorporated. Add mushroom onion sausage mixture. Gently mix. Add HOT water if needed. Serve, or save and reheat.