You can get these ready a little ahead of time and then grill them on your outside grill or at your camp site over the fire. You can also do them in a hot oven. You will have to hollow the bread out some to make room for the meat and cheese filling. This is fun to make if a gang shows up unexpectedly and you need a hearty sandwich for a hearty appetite. You can use any kind of meat or cheese of your choice, or you can combine meats.