GRILL DIRECTIONS: Heat grill. Cut two 24x12-inch pieces of heavy-duty foil. Place 4 ears of corn on center of each piece of foil.
In small bowl, combine butter and taco seasoning mix; mix well. Brush corn with butter mixture. Wrap ears of corn securely using double-fold seals, allowing room for heat expansion.
When ready to grill, place corn packets on gas grill over medium-high heat or on charcoal grill 4 to 6 inches from medium-high coals. Cook 25 to 35 minutes or until corn is thoroughly heated, turning occasionally.
Open corn packets carefully to allow steam to escape; place corn on serving platter.