Creating Garlic Herb Butter Roasted Chicken is a straightforward process when you follow these steps:

1. Preheat the Oven: Preheat your oven to 425°F (220°C).
2. Prepare the Chicken: Pat the chicken dry with a paper towel. This will help to achieve a crispy skin.
3. Make the Garlic Herb Butter: In a bowl, mix the softened butter, minced garlic, chopped rosemary, thyme, parsley, salt, and pepper until fully combined.
4. Season the Chicken: Gently lift the skin of the chicken on the breast side with your fingers. Spread some of the garlic herb butter under the skin, covering as much surface as possible. Rub the remainder all over the outside of the chicken.
5. Add Lemon: Squeeze the juice from half of the lemon over the chicken, and place the lemon halves inside the cavity of the chicken.
6. Drizzle with Olive Oil: Lightly drizzle olive oil over the chicken to ensure an extra crispy skin.
7. Roast the Chicken: Place the chicken in a roasting pan and roast it in the preheated oven for 1 hour, or until the internal temperature reaches 165°F (74°C). Baste the chicken with its own juices halfway through for optimal moisture.