- In large bowl, combine first 3 ingredients; salt and pepper as desired. Stir in potatoes and cheese.
- Prepare grill to medium heat. Place two (28x18-inch) sheets of aluminum foil on top of each other. Place potatoes on foil. Crimp and seal each layer of foil individually, creating one packet.
- Place foil packet on grill. Grill 45-50 minutes, turning packet over and around occasionally. Remove from grill and carefully open packet.
Makes 6 servings.
Make ahead: Prepare through step 2. Refrigerate up to overnight or label and freeze. Thaw completely, if frozen. Continue with step 3.