01 - Preheat oven to 425°F. Arrange a rack in the center position.
02 - Line a large baking sheet with parchment paper or lightly grease it to prevent sticking.
03 - Combine potatoes, onion, carrots, and garlic in a large mixing bowl. Add half the olive oil, half the salt, pepper, rosemary, thyme, and paprika. Toss until vegetables are thoroughly coated.
04 - Spread seasoned vegetables in an even layer on the prepared baking sheet.
05 - Rub chicken thighs with remaining olive oil, salt, pepper, rosemary, thyme, and paprika. Place chicken skin-side up over the vegetables.
06 - Roast for 40 minutes or until chicken skin turns golden and potatoes are fork-tender. For extra crispiness, broil for 2–3 minutes as desired.
07 - Remove the pan from the oven and let rest for 3 to 5 minutes. Garnish with chopped parsley before serving if preferred.