Preheat your oven to 400°F (200°C).
Trim the woody ends off the asparagus and place them on a large baking sheet along with the cherry tomatoes.
Drizzle the vegetables with 0.5 tablespoon of olive oil and season with a pinch of sea salt and black pepper.
Season the chicken breast evenly on both sides with the remaining sea salt, black pepper, dried thyme, and lemon zest.
Heat the remaining 0.5 tablespoon of olive oil in a medium oven-safe skillet over medium-high heat.
Place the chicken in the skillet and sear for 3-4 minutes per side until a golden crust forms.
Add the minced garlic and lemon juice to the skillet, then transfer both the skillet and the vegetable baking sheet into the oven.
Roast for 10-12 minutes, or until the chicken reaches an internal temperature of 165°F and the asparagus is tender-crisp.
Remove from the oven and let the chicken rest for 5 minutes before slicing.
Plate the chicken alongside the roasted asparagus and tomatoes, spooning any remaining pan juices over the top.