Preheat your oven to 400°F (200°C) and line a large sheet pan with parchment paper for easy cleanup.
Trim the woody ends off the asparagus spears and place them on one side of the prepared sheet pan.
Place the chicken breast on the other side of the pan, ensuring it is not overlapping with the vegetables.
In a small bowl, whisk together the extra virgin olive oil, fresh lemon juice, lemon zest, dried oregano, garlic powder, sea salt, and black pepper.
Drizzle the herb and lemon mixture evenly over both the chicken breast and the asparagus spears, tossing the asparagus slightly to ensure full coverage.
Roast in the center of the oven for 18 to 22 minutes, or until the chicken reaches an internal temperature of 165°F and the asparagus is tender and slightly charred.
Remove from the oven and let the chicken rest for 5 minutes before slicing it into strips.
Serve the sliced chicken and roasted asparagus over a bed of warm cooked quinoa.