Preheat your oven to 400°F and line a large sheet pan with parchment paper for easy cleanup.
Wash the gold potatoes and dice them into uniform 1-inch cubes to ensure even cooking.
In a small bowl, whisk together the olive oil, minced garlic, dried rosemary, dried thyme, sea salt, and black pepper.
Place the diced potatoes on the sheet pan, drizzle with half of the herb oil mixture, and toss to coat thoroughly.
Roast the potatoes in the oven for 15 minutes to give them a head start on crisping up.
While potatoes roast, trim the woody ends off the asparagus and pat the chicken breast dry with a paper towel.
Remove the pan from the oven, move the potatoes to one side, and add the chicken breast and asparagus to the empty space.
Brush the remaining herb oil over the chicken and asparagus, then return the pan to the oven for 18-20 minutes until the chicken reaches an internal temperature of 165°F.
Finish by squeezing the fresh lemon juice over the entire tray to brighten the savory flavors before serving.