01 - Preheat the oven to 425°F.
02 - Pat chicken thighs dry with paper towels. Rub with 1 tbsp olive oil, salt, pepper, thyme, and rosemary.
03 - Arrange chicken thighs, skin side up, on a large baking sheet or roasting pan.
04 - In a large bowl, toss asparagus, carrots, peas, radishes, and red onion with remaining olive oil and a pinch of salt.
05 - Scatter vegetables, garlic cloves, and lemon slices around the chicken on the pan.
06 - Roast for 40–45 minutes, or until the chicken is golden and cooked through (internal temperature should reach 165°F), and vegetables are tender.
07 - Remove from oven and let rest 5 minutes. Garnish with fresh parsley before serving.