These were difficult to photograph, but easy to make and eat. The original recipe (from Barefoot Contessa Parties!) calls for a larger piece of beef tenderloin, and a blue cheese dressing. We improvised with smaller tenderloin/filet steaks because my usual source for beef tenderloin, Costco, was not carrying the larger pieces the last time I was there. The blue cheese, well, you know me and blue cheese. Even if I liked blue cheese, though, I don’t think I would have loved it on this sandwich – there would have been too much going on with the beef and the arugula. You’ll have to trust me that these tasted much, much better than they looked. Even with a smaller piece of beef, we still had enough left over to make sandwiches for lunch for a couple of days. Brown bagging it never tasted so good.