Preheat your oven to 400°F and prepare a large oven-safe skillet.
Pat the chicken breast dry with paper towels and season both sides evenly with sea salt, black pepper, and fresh thyme.
Heat the olive oil in the skillet over medium-high heat until shimmering.
Place the chicken in the skillet and sear for 3 to 4 minutes until a golden-brown crust forms, then flip.
Trim the woody ends off the asparagus and arrange the spears around the chicken in the skillet.
Transfer the entire skillet to the oven and roast for 10 to 12 minutes or until the chicken reaches an internal temperature of 165°F.
Carefully remove the hot skillet from the oven and place it back on the stove over low heat.
Add the ghee, minced garlic, and the juice of half a lemon to the pan, spooning the melting herb butter over the chicken to baste it.
Garnish with freshly chopped parsley and serve the chicken alongside the tender roasted asparagus.