steak

This steak sandwich is simple but packed with flavor — seared steak, sweet caramelized onions, peppery arugula, and a tangy horseradish-balsamic sauce. Choosing the Steak You don’t need a fancy cut, but it should be something tender. Sirloin, ribeye, or flank steak all work well. I used fillet cap steak, which I find very flavorful…