Sunday's Prime Rib dinner leftovers, becomes Wednesday's pasta special. It's a double pay off really; the use of leftovers and the fact that this meal is almost ready made. I sliced the leftover steak into thin pieces. To make the sauce, I sauteed some sliced shallots and mushrooms and then added the extra gravy I had made. Let simmer for a bit, add a splash of cream and bring back to a simmer. Toss in the steak at the last minute, just to heat. Serve over pappardelle with some freshly grated parmesan. Chris and the kids love this meal more than the original prime rib dinner. Sometimes if I want to get a little fancy, I add a few drops of white truffle oil or maybe some balsamic vinegar. And really, you can do this easy meal with any leftovers if you have a little gravy. Who doesn't like a bonus meal?