01 - Preheat oven to 400°F. Line a large rimmed baking sheet with parchment paper and set aside.
02 - In a small mixing bowl, combine 3 tablespoons olive oil, minced garlic, chopped parsley, thyme leaves, dried oregano, kosher salt, black pepper, and lemon zest. Stir until well blended.
03 - Place chicken breasts in a large bowl or resealable plastic bag. Pour the marinade over the chicken, turning each piece to coat evenly. Allow to marinate at room temperature for at least 10 minutes, or refrigerate for up to 4 hours for more pronounced flavor.
04 - Remove chicken from the marinade and arrange the breasts on one half of the prepared baking sheet, leaving space between each piece for even roasting.
05 - Toss the trimmed asparagus with 1 tablespoon olive oil, 1/2 teaspoon salt, and 1/4 teaspoon pepper. Spread in a single layer on the remaining half of the baking sheet.
06 - Roast in the preheated oven for 20 to 25 minutes, until the chicken reaches an internal temperature of 165°F and the asparagus is fork-tender with lightly caramelized tips.
07 - Remove the baking sheet from the oven. Squeeze fresh lemon juice from the wedges over the chicken and asparagus. Sprinkle with additional chopped parsley if desired.
08 - Transfer chicken and asparagus to plates and serve immediately while hot.