01 - Preheat oven to 400°F for optimal roasting conditions.
02 - Whisk together olive oil, lemon zest, lemon juice, minced garlic, chopped basil, honey, and Dijon mustard in a mixing bowl until thoroughly combined.
03 - Season chicken breasts evenly with salt and pepper. Place in a resealable bag or shallow dish, pour marinade over the chicken, and ensure all pieces are thoroughly coated. Marinate for at least 15 minutes, up to 2 hours refrigerated for enhanced flavor.
04 - Combine baby potatoes, cherry tomatoes, and sliced red bell pepper with olive oil, salt, and pepper. Toss until evenly coated and spread on a parchment-lined baking sheet in a single layer.
05 - Remove chicken from marinade and place breasts directly on top of the prepared vegetables. Discard any remaining marinade.
06 - Roast in preheated oven for 30-35 minutes, or until chicken reaches an internal temperature of 165°F and vegetables are tender-crisp.
07 - Remove from oven and let the chicken rest for 5 minutes to allow juices to redistribute. Garnish with additional fresh basil if desired and serve immediately.