The Reuben sandwich is filled with corned beef and lots of cheese and grilled to crispy goodness on rye or pumpernickel bread. Reuben Sandwich by Sue Lau | Palatable Pastime ~ updated 4.28.18 for photography ~ This week is a big week at meat markets everywhere as it seems they all have corned beef brisket on sale for the upcoming St. Patrick's Day holiday. It is a very good time to stock up- and when doing so, one will need to find some recipes for all that beef. Of course, there is always the usual braised corned beef, but sometimes,