Steve has requested that I figure this one out because his Grandpa Day would eat it. I think it's cute that he wants to be like his Grandpa. It's pretty easy to make and it's a great way to use leftovers.
4 pieces of toast buttered
1-2 Tbs cornstarch
Place the roast in a skillet over medium heat. let the fat and gravy render out a little. If you need more gravy mix cornstarch with a little water, pour in with meat. If you use 1 Tbs cornstarch add about 1 cup of water. Season to taste. I like to add quite a bit of pepper. Bring to a boil. Let it simmer til the gravy thickens.
Spoon warm meat mixture over toast.