Preheat your oven to 400°F (200°C) and line a large rimmed baking sheet with parchment paper for easy cleanup.
Trim the woody, fibrous ends off the asparagus spears and pat the chicken breast dry with a paper towel.
In a small mixing bowl, whisk together the extra virgin olive oil, minced garlic, sea salt, black pepper, and dried oregano.
Place the chicken breast on one side of the baking sheet and the asparagus spears on the other side.
Drizzle the garlic-herb oil over both the chicken and the asparagus, using your hands or a brush to ensure everything is evenly coated.
Sprinkle the grated Parmesan cheese over the top of the chicken and the asparagus spears.
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 with slightly crispy tips.
Remove from the oven and let the chicken rest for 5 minutes before slicing it into strips and serving alongside the roasted asparagus.