Pesto chicken packets are a delicious and convenient way to cook chicken and vegetables together. The chicken breasts are marinated in a flavorful pesto sauce and then sealed in foil packets with vegetables such as cherry tomatoes, bell peppers, and zucchini. The packets are then baked in the oven until the chicken is cooked through and the vegetables are tender. This dish is easy to prepare and clean up, making it perfect for a weeknight dinner or for entertaining guests.