What to do with leftover corned beef. Duh!

Rueben sandwiches of course. I used pumpernickel bread, swiss cheese and sauerkraut which has been squeezed dry.  I put cheese on the bread, then a combination of Russian and Thousand island dressing, ( so it does not make the bread soggy) mixed with kraut, the corned beef and another layer of cheese.  The outsides of the bread is buttered and grilled until the cheese melts on both sides.