Preheat Oven To 400 Degrees F. Mix Seasoning, Hot Water, Butter And Pasta In 13X9X2-Inch Baking Dish. Top With Chicken. Pour Baking Sauce Over Chicken And Pasta. Cover Tightly With Foil. Bake 20 Minutes. Stir Pasta Around Edge Of Dish. Sprinkle Chicken With Crumb Topping. Bake, Uncovered, 10 Minutes Or Until Done. Stir Pasta Before Serving.