2 lbs mashed potatoes (just make these the normal way)
Stuffing (I just make a boxed mix, add some onions and celery if I'm feeling particularly interesting)
2 tbsp butter
2 tbsp flour
2 cups chicken (or turkey if you have it) broth
1 tsp poultry seasoning
salt
pepper
2 lbs roasted turkey breasts (you need about 8 slices, you can use thick cut deli turkey, but leftover roast turkey or a rotisserie turkey from the deli is much better)
4 slices bread

Cook and mash potatoes.  Cook stuffing as well.

Meanwhile, preheat a skillet over medium heat to make gravy.  Melt the 2 tablespoons of butter to preheated skillet.  Whisk in flour and cook for 1 minute.  Whisk in 2 cups of chicken broth.  Add poultry seasoning, salt and pepper.  Allow to thicken slightly.  Put sliced turkey into gravy to warm it.  Place a bread slice on a plate.  Put stuffing on bread, then turkey on top of that.  Put potatoes on the side. Cover everything in gravy.

Serves 4.