One leftover potroast, sliced thin
One large onion, thinly sliced
Spices
Mozzarella cheese
Homemade rolls
Saute the onion in a little oil and some spices (I cheated and used the 'steak rub' from costco) until it is soft. Grate the cheese. Fry the beef lightly with the onion until browned on both sides.
Slice a roll, lay in a piece of hot meat, sprinkle on a goodly pile of cheese, then a nice heap of onions. Close roll. Devour with gusto.
It's not quite a philly cheesesteak...but dang it was good!
