01 - Preheat the oven to 425°F.
02 - Line a large baking sheet with parchment paper or lightly grease it.
03 - Combine potatoes, red onion, carrots, and garlic in a large mixing bowl. Toss with half of the olive oil, half the salt, black pepper, rosemary, thyme, and paprika until evenly coated.
04 - Spread the seasoned vegetables evenly across the prepared baking sheet.
05 - Rub chicken thighs with the remaining olive oil, salt, pepper, rosemary, thyme, and paprika.
06 - Arrange chicken thighs skin-side up atop the vegetables on the baking sheet. Roast for 40 minutes or until chicken skin is golden and potatoes are fork-tender.
07 - For extra crispiness, broil for 2 to 3 minutes if desired. Rest for 3 to 5 minutes, then sprinkle with chopped parsley before serving.