Preheat your oven to 400°F and line a small baking sheet with parchment paper.
Trim the woody ends off the asparagus and toss the spears with the extra virgin olive oil and half of the sea salt and black pepper.
Spread the asparagus in a single layer on the baking sheet and roast for 12 to 15 minutes until tender but still crisp.
While the asparagus roasts, season the chicken breast evenly with the remaining sea salt and black pepper.
Heat the ghee in a medium skillet over medium-high heat until melted and shimmering.
Place the chicken in the skillet and sear for 6 to 7 minutes per side until the exterior is golden brown and the internal temperature reaches 165°F.
Reduce the heat to low, add the minced garlic to the pan, and sauté for 30 seconds until fragrant.
Whisk in the lemon juice, lemon zest, and fresh thyme, spooning the pan juices over the chicken for 1 minute to glaze.
Transfer the roasted asparagus to a small plate, top with the sliced chicken breast, and drizzle the remaining lemon-herb pan sauce over the top.