Heat oven to 350°F. In a large skillet, cook sausage until brown.
Remove sausage; drain fat and set aside. In the same skillet, cook apple and onion in hot butter until tender. Remove from heat. Stir in poultry seasoning and black pepper.
In a large bowl, combine sausage, apple mixture, cornbread and parsley. Drizzle with enough chicken broth to moisten, tossing gently. Transfer to a greased 2-quart casserole.
Cover and bake for 25 to 30 minutes or until heated through.