Preheat your oven to 400°F (200°C) and line a large sheet pan with parchment paper.
Halve the baby potatoes and toss them directly on the pan with 0.5 tbsp of olive oil and a pinch of salt and pepper.
Roast the potatoes for 10 minutes to give them a head start.
While potatoes roast, mince the garlic and finely chop the fresh rosemary and thyme.
Rub the chicken breast with the remaining 0.5 tbsp of olive oil, minced garlic, herbs, salt, and pepper.
Remove the pan from the oven, move the potatoes to one side, and place the chicken breast in the center.
Arrange the asparagus spears and cherry tomatoes around the chicken.
Squeeze the juice from the lemon half over the chicken and vegetables, then place the squeezed lemon rind on the pan for extra aroma.
Return the pan to the oven and roast for 15-20 minutes, or until the chicken reaches an internal temperature of 165°F and the vegetables are tender.
Let the chicken rest for 5 minutes before slicing to keep it juicy.