I made these for a dinner party recently and they were so good, I had to make them again. Besides being delicious, they are easy to make. One great thing about this recipe is you can mix up the ingredients. Use sweet potatoes or red potatoes in place of the Idaho potatoes. Rather than sprinkle green onions on at the end, slice a sweet onion into wedges and include in the packet. Kick up the heat with some sliced jalapeños. Use a blend of cheeses rather than just one type. If you prefer you could bake packets rather than putting them on the grill.