Preheat your oven to 400 degrees Fahrenheit and line a large rimmed baking sheet with parchment paper for easy cleanup.
Prepare the vegetables by peeling and slicing the carrots into one-inch rounds and trimming the stem ends off the fresh green beans.
In a small glass bowl, whisk together the olive oil, dried thyme, dried rosemary, garlic powder, sea salt, and black pepper until well combined.
Place the turkey breast in the center of the baking sheet and arrange the carrots and green beans in a single layer around the meat.
Drizzle the herb-infused oil over the turkey and vegetables, using your hands or a brush to ensure everything is evenly and thoroughly coated.
Roast in the center of the oven for twenty-five to thirty minutes, or until the turkey reaches an internal temperature of 165 degrees Fahrenheit and the vegetables are fork-tender.
Remove from the oven and allow the turkey to rest for five minutes before slicing it into thick, juicy medallions to serve alongside the roasted vegetables.