Preheat your oven to 400°F and line a large sheet pan with parchment paper for easy cleanup.
Halve the baby gold potatoes and slice the carrots into half-inch thick rounds.
Trim the woody, fibrous ends from the asparagus spears and set the spears aside.
In a large bowl, combine the chicken breast, halved potatoes, and sliced carrots.
Drizzle with olive oil and sprinkle with sea salt, black pepper, dried rosemary, dried thyme, and garlic powder.
Toss the ingredients thoroughly to ensure every piece is well-coated with the herb-infused oil.
Arrange the chicken, potatoes, and carrots on the prepared sheet pan in a single layer, leaving space between items.
Roast in the center of the oven for 15 minutes.
Remove the pan, add the asparagus spears, and squeeze the juice of half a lemon over the entire tray.
Return to the oven for an additional 10 to 12 minutes until the chicken is cooked through and the potatoes are fork-tender.
Garnish with fresh lemon zest for a vibrant finish and serve while hot.