Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper for easy cleanup.
Dice the Yukon gold potato into small half-inch cubes and trim the tough, woody ends off the asparagus spears.
Finely mince the garlic cloves and strip the leaves from the rosemary and thyme sprigs, chopping them finely.
In a large mixing bowl, combine the chicken breast, cubed potatoes, and asparagus.
Drizzle with extra virgin olive oil and add the minced garlic, chopped rosemary, thyme, sea salt, and black pepper.
Toss everything thoroughly until the chicken and vegetables are evenly coated in the oil and aromatics.
Spread the mixture in a single layer on the prepared baking sheet, ensuring the chicken pieces are not crowded.
Squeeze the juice from the half lemon over the entire tray and place the spent lemon hull on the pan for extra aroma.
Roast in the center of the oven for 20 to 25 minutes, or until the chicken reaches an internal temperature of 165°F and the potatoes are golden.
Remove from the oven and let the chicken rest for 5 minutes before slicing to keep it juicy and flavorful.