Preheat your oven to 425°F (220°C) and line a large sheet pan with parchment paper.
Slice the fingerling potatoes in half lengthwise and trim the woody ends off the asparagus spears.
In a small mixing bowl, whisk together the extra virgin olive oil, lemon juice, lemon zest, minced garlic, dried rosemary, dried thyme, sea salt, and black pepper.
Place the chicken breast, halved potatoes, and cherry tomatoes on the prepared sheet pan.
Drizzle the herb-oil mixture over the chicken and vegetables, tossing the potatoes and tomatoes to ensure they are well-coated.
Roast in the oven for 15 minutes.
Remove the pan briefly to add the asparagus spears, tossing them in the remaining juices on the pan.
Return to the oven and roast for another 10-12 minutes until the chicken reaches an internal temperature of 165°F and the potatoes are golden and crispy.