Caprese stuffed chicken foil packs can be cooked in the oven, on the grill, or even over a campfire. They're chicken breasts stuffed with tomato, basil, mozzarella cheese, and balsamic vinegar; placed on top of seasoned veggies; and wrapped up in foil packets.
To make on the grill:
Preheat the grill to medium-high.
Prepare the tomato mixture, squash, and chicken the same way except double up on the aluminum foil to provide more stability.
Place the foil packets directly on the grill grates. Cook for 20-25 minutes, until the center of the chicken is 165 degrees F. Let them cool for 5 minutes before opening the packets.