Toss some shredded turkey (dark meat is best) into the pan with the butter until the meat is just heated through, adding salt and pepper while tossing the meat. Set the hot turkey aside.
(I use cast iron skillet. A toaster oven which i don't own, might work good as well)
on one side of bread, top with cheese slices and cooked bacon (if desired)
then replace the other side of bread on top.
Nothing is better than simple things!
1) You can use tortillas instead of bread then make Turkey Roll Ups.
2) If you have leftover ham, you might as well throw them in to the pan with the turkey meat.
3) If using bacon and ham, you don't need to use a lot of salt on the turkey meat as the cheese, ham and bacon are loaded with salt already.
4) If using bacon, use the same pan with grease from frying bacon to saute the turkey in....ahh you'll have a flavorful sandwich!!