Preheat your oven to 425°F (220°C).
Rinse the chicken under cold water and pat dry with paper towels.
Drizzle olive oil over the chicken, rubbing it into the skin.
Season generously with salt and pepper, including the cavity.
Stuff the cavity with lemon halves, garlic, and fresh herbs.
Place the chicken breast-side up in a roasting pan.
Add chopped vegetables around the chicken in the pan.
Roast in the preheated oven for about 1 hour and 15 minutes.
Use a meat thermometer to ensure the internal temperature reaches 165°F (75°C).
Let the chicken rest for 10-15 minutes before carving and serving.