Preheat your oven to 400°F and line a large rimmed baking sheet with parchment paper.
Pat the chicken breast completely dry with paper towels and season both sides with sea salt and black pepper.
Clean the cremini mushrooms with a damp cloth to remove debris and slice them in half.
Trim the woody ends off the asparagus spears and set them aside.
In a small microwave-safe bowl, melt the ghee and whisk in the minced garlic, chopped thyme, and chopped rosemary.
Place the chicken breast, halved mushrooms, and asparagus on the prepared baking sheet in a single layer.
Drizzle the garlic-herb ghee over the chicken and vegetables, using a brush or tongs to ensure everything is evenly coated.
Roast in the oven for 18 to 22 minutes, or until the chicken reaches an internal temperature of 165°F and the mushrooms are tender and browned.
Remove from the oven and let the chicken rest for 5 minutes before slicing and serving with the roasted vegetables.