1Heat coals or gas grill for direct heat. Spray two 30x18-inch pieces of heavy-duty aluminum foil with cooking spray.
2Spread tortilla chips on centers of foil pieces. Mix chicken and barbecue sauce. Spoon chili beans, chicken mixture, olives, tomatoes and cheese on chips.
3Wrap foil securely around tortilla chips. Cover and grill foil packets, seam sides up, 4 to 6 inches from medium heat 8 to 10 minutes or until cheese is melted.