Brown sausage in a large skillet, stirring to crumble. Drain and set aside.
Melt butter in skillet; add mushrooms, onion, and green onions, and sauté until tender. Stir in sausage, broth, and remaining ingredients. Spoon 4 cups stuffing into turkey, if desired; place remaining stuffing into a lightly greased 13- x 9-inch baking dish.
Bake at 375° for 45 minutes or until lightly browned.
Note: A poultry herb bouquet contains 2 sprigs each of fresh sage, rosemary, and thyme; 1 teaspoon of each dried herb may be substituted.