01 - Set oven temperature to 425°F. Line a large sheet pan with parchment paper or foil to facilitate cleanup.
02 - In a small bowl, whisk together olive oil, kosher salt, black pepper, thyme, rosemary, lemon zest, and minced garlic to create the marinade.
03 - Pat the turkey breast dry with paper towels. Evenly apply the marinade over the entire surface of the turkey, including beneath the skin if accessible.
04 - In a mixing bowl, toss the halved baby potatoes, sliced carrots, and red onion wedges with olive oil, kosher salt, and black pepper until fully coated.
05 - Spread the seasoned vegetables evenly across the prepared sheet pan. Position the turkey breast, skin side up, centrally among the vegetables.
06 - Place the sheet pan in the oven and roast for 40 to 50 minutes, or until the turkey registers an internal temperature of 165°F and the vegetables are tender and golden.
07 - Remove the turkey breast from the oven and allow it to rest for 10 minutes to ensure juices redistribute.
08 - Slice the turkey breast and plate with the roasted vegetables. Optionally garnish with lemon wedges and fresh herbs.