01 - Preheat oven to 425°F. Line a large baking sheet with parchment paper or lightly oil the surface.
02 - In a large mixing bowl, toss halved baby potatoes, red onion wedges, carrot coins, and smashed garlic with half the olive oil, half of the salt, ground black pepper, dried rosemary, thyme, and paprika until evenly coated.
03 - Distribute the seasoned vegetables in an even layer on the prepared baking sheet.
04 - Rub chicken thighs with the remaining olive oil, salt, pepper, rosemary, thyme, and paprika. Place chicken pieces skin-side up on top of the vegetable layer.
05 - Transfer sheet pan to the oven and roast for 40 minutes, until the chicken skin is crisp and golden brown and potatoes are easily pierced with a fork. For crispier skin, broil for 2 to 3 more minutes if desired.
06 - Remove pan from oven and allow contents to rest for 3 to 5 minutes before serving. Garnish with chopped fresh parsley if desired.