Cornish Hen

Bahan-bahan (4 porsi)

• 2 (about 1.5 pounds) each cornish hens
• 3 tablespoons olive oil (divided)
• ½ teaspoon kosher salt (or to taste)
• ½ teaspoon dried rosemary (crushed)
• ½ teaspoon lemon zest
• ¼ teaspoon black pepper
• ¼ teaspoon dried thyme leaves
• ¼ teaspoon garlic powder
• 1 pound potatoes (cut into 1-inch pieces)
• 2 carrots (cut into 1-inch pieces)
• 1 onion (cut into 1-inch wedges)
• salt and black pepper (to taste)