Cheesesteak Sandwiches

thinly sliced ribeye steak, (I get mine in bulk from the Asian supermarket in the meats section. They have them pre-thinly sliced. Just ask where the bulgogi meat is)

medium green pepper, (sliced into strips)

medium onion, (sliced into strips)

portobello mushrooms, (sliced)

shredded provolone cheese

Salt and pepper, (to taste)

sub rolls, (sliced in half (but not all the way through))