Place the sliced steak in between 2 pieces of plastic wrap or butcher's paper and pound using a mallet until it is half as thick as the original slice. They should be 1/4" to 1/2" thick.
Once the oil begins to smoke lightly, add the steaks and cook for 2 to 2 ½ minutes per side or until browned. You may have to do this in batches depending on how big the pan is.