Cook sausage in large nonstick skillet over medium heat, stirring occasionally, until thoroughly cooked, about 6 minutes. Remove sausage from skillet; set aside.
Heat olive oil in same skillet over medium heat and cook apples, onion, celery and carrots, stirring occasionally, until apples and vegetables are golden, about 5 minutes. Add water and Knorr® Homestyle Stock Chicken, stirring well to dissolve. Stir in bread cubes, cooked sausage and parsley. Turn into 13 x 9-inch (33 x 23-cm) baking dish. Bake covered 15 minutes. Remove cover and bake an additional 15 minutes.