Heat 10 inch skillet over medium-high heat until hot. Add sausage and cook until browned, about 10 minutes, stirring frequently to break up sausage. With slotted spoon, transfer sausage to large bowl; stir in stuffing mix.
To drippings in skillet, add butter and heat until melted. Add celery and onion and cook, stirring occasionally until vegetables are tender and golden, about 10 minutes Transfer celery mixture to bowl with sausage.
Pour 2-1/2 cups hot water over stuffing mixture and toss to mix well. Spoon stuffing into 13 x 9 inch glass baking dish and cover with foil. Bake in preheated 325 degrees F oven for 30 minutes or until the dressing is heated through.
Ingredients: