Preheat your oven to 400°F and line a large rimmed baking sheet with parchment paper for easy cleanup.
Wash and dice the gold potatoes into small 1/2-inch cubes, snap the woody ends off the asparagus, and mince the garlic.
In a small bowl, whisk together the extra virgin olive oil, minced garlic, dried oregano, dried thyme, sea salt, black pepper, and the zest from the lemon half.
Place the chicken breast on one side of the prepared sheet pan and arrange the diced potatoes, asparagus, and cherry tomatoes on the remaining space.
Brush the herb oil mixture generously over the chicken breast and drizzle the remaining oil over the vegetables, tossing them gently to ensure an even coating.
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 fork-tender.
Remove from the oven and immediately squeeze the juice from the lemon half over the chicken and vegetables before serving.