Preheat your oven to 400°F (200°C).
Halve the baby potatoes and toss them on a baking sheet with 0.5 tbsp of olive oil, a pinch of sea salt, and black pepper.
Roast the potatoes for 12 minutes.
Trim the woody ends from the asparagus and add them to the baking sheet along with the cherry tomatoes, roasting for an additional 10-12 minutes until tender.
While vegetables roast, season the chicken breast evenly with dried thyme, dried rosemary, sea salt, and black pepper.
Heat the remaining 0.5 tbsp of olive oil in a skillet over medium-high heat.
Sear the chicken for 5-7 minutes per side until the exterior is golden and crispy and the internal temperature reaches 165°F.
Remove the chicken from the skillet and let it rest for 3 minutes.
In the same skillet, add the minced garlic, lemon juice, and lemon zest, stirring for 1 minute to pick up the browned bits from the pan.
Slice the chicken and serve it drizzled with the lemon-garlic pan sauce alongside the roasted vegetables.