01 - Preheat the oven to 400°F.
02 - Pat the chicken dry with paper towels. Rub the skin thoroughly with olive oil, salt, and pepper.
03 - Stuff the chicken cavity with lemon halves, 1 rosemary sprig, and 2 thyme sprigs.
04 - Place chicken breast side up in a large roasting pan or ovenproof skillet.
05 - Arrange potatoes, carrots, onion, and garlic cloves around the chicken. Drizzle vegetables with extra olive oil and season with salt and pepper.
06 - Scatter remaining rosemary and thyme over the vegetables.
07 - Roast for 50 minutes, basting chicken with pan juices halfway through cooking.
08 - Remove pan from oven. Add asparagus and sugar snap peas to the vegetables, toss gently to combine.
09 - Dot chicken with softened butter and sprinkle lemon zest over chicken and vegetables. Pour chicken broth or water into the pan.
10 - Return to oven for additional 20 minutes, until chicken is golden and thermometer inserted into thickest part of thigh reads 165°F.
11 - Let chicken rest for 10 minutes before carving. Garnish with chopped parsley and serve with roasted vegetables.