Preheat oven to 425°F (220°C). Line rimmed baking sheet with foil. Combine Knorr® Homestyle Stock Chicken with margarine in small microwave-safe bowl and microwave at HIGH 20 seconds. Stir until smooth.
Arrange remaining ingredients on prepared baking sheet; drizzle with Stock mixture and toss to coat.
Bake 40 minutes or until chicken is thoroughly cooked and potatoes are tender.