Cook and brown ground beef along with the half of the onion.
As you are cooking the ground beef peel the two potatoes and cut them up and start cooking them in water
Drain the corn and green beans and add to the beef when browned.
After you add the vegatables cook the brown gravy
After it's done prepare the mashed potatoes normally with butter and spices and a little milk.
Put some of the mashed potatoes down on a plate and put the beef mixture on top of that and then pour gravy on top.