01 - Preheat oven to 400°F. Line a large sheet pan with parchment paper.
02 - Combine olive oil, lemon juice, lemon zest, garlic, rosemary, thyme, salt, and black pepper in a large bowl. Coat turkey breast thoroughly and marinate for 15 minutes, or up to 2 hours refrigerated for enhanced flavor.
03 - Toss baby potatoes, carrots, red bell pepper, zucchini, and red onion with olive oil, dried Italian herbs, salt, and black pepper until evenly coated.
04 - Spread vegetables in a single layer on the sheet pan, leaving center space for the turkey breast.
05 - Place marinated turkey breast in the center of the pan among the vegetables.
06 - Roast in the preheated oven for 35 to 40 minutes until the turkey reaches an internal temperature of 165°F and vegetables are tender with caramelized edges.
07 - Remove pan from oven, cover turkey loosely with foil, and let rest for 5 to 10 minutes before slicing.
08 - Slice turkey and serve alongside roasted vegetables. Garnish with additional lemon zest or fresh herbs if desired.