4 large potatoes, peeled and cut into 1/4-inch slices
2 large onions, cut into 1/4 inch thick slices
2 large green bell pepper, cut into 1/4 inch strips
2 cups sliced button mushrooms
Directions
Step 1 Preheat an outdoor grill for medium-high heat.
Step 2 Stir together the vegetable oil, cider vinegar, garlic powder, black pepper, salt, basil, and thyme in a bowl; set aside.
Step 3 Lay out 4 12×12 inch squares of aluminum foil. Place 1 chicken breast in the center of each square, top with potatoes, onions, bell peppers, and mushrooms. Ladle 1/4 of the sauce on each and fold the foil around the ingredients to form four sealed packets.
Step 4 Grill the packets on the preheated grill for 30 to 40 minutes, until the internal temperature of the chicken breasts reaches 170 degrees F.