Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Rinse the quinoa under cold water and place it in a small saucepan with 0.66 cups of water; bring to a boil, then reduce heat to low, cover, and simmer for 15 minutes.
While the quinoa cooks, finely mince the garlic, rosemary, and thyme.
In a small bowl, whisk together the extra virgin olive oil, lemon juice, lemon zest, minced garlic, rosemary, and thyme.
Place the chicken breast and the trimmed asparagus spears on the prepared baking sheet.
Brush half of the lemon-herb mixture over the chicken breast and drizzle the remaining half over the asparagus, tossing the spears to coat evenly.
Season both the chicken and asparagus with sea salt and black pepper.
Roast in the oven for 20 to 25 minutes, or until the chicken reaches an internal temperature of 165°F and the asparagus is tender and slightly charred.
Once the quinoa is done, fluff it with a fork and plate it alongside the roasted chicken and asparagus.