#1 Prepare a hot two-zone charcoal or gas grill fire or preheat oven to 400? #2 Tear off two 18” long pieces of foil for each packet (8 pieces total) and double them up #3 In center of each piece of foil, place ½ cup rice, ¾ cup black beans, and ½ cup corn kernels #4 Rub chicken tenders with seasoning mix, and place 2 tenders in each foil packet. Bring up sides of foil to hold in contents and pour ½ cup chicken stock into each packet. Seal packets tightly #5 Place packets on grill over indirect heat or set on a large sheet pan and place in oven #6 Grill or bake until rice and chicken are cooked (chicken should reach an internal temperature of 165?), about 30 minutes #7 Carefully open packets (they will be steaming hot) and sprinkle contents with cheese. Return to grill or oven just long enough to melt cheese, 3-5 minutes #8 Serve hot with salsa on the side. Sprinkle with cilantro, if desired.