Mix your ground beef, egg, onion soup mix, and Worcestershire sauce well and form into 4 equal patties.

Skin and dice your potatoes and put them in a pot of water to boil, boil until soft.

Meanwhile, cook the burgers in a skillet until done, saute the mushrooms,cover with gravy and cover with a lid to simmer.

Mash your potatoes.

Put a slice of bread on each plate, a scoop of potatoes on the bread, a burger patty on the potatoes, and cover with mushroom gravy.

Serve hot.