01 -  Preheat oven to 400°F (200°C). In a large bowl, toss chicken drumsticks and chopped root vegetables with olive oil, rosemary, salt, and black pepper until evenly coated. Arrange in a single layer on a sheet pan. 
 02 -  Roast for 35 to 40 minutes, stirring the vegetables once halfway through cooking. Ensure chicken reaches an internal temperature of 165°F (74°C) and vegetables are tender. 
 03 -  Serve warm, directly from the pan. Spoon roasted vegetables and chicken onto plates as desired.