Nothing says "special occasion" like a gorgeous, succulent beef tenderloin, especially when it's paired with deeply flavored red wine mushroom sauce. You'll need to spend a bit of time in the kitchen to prepare this, but the techniques are easy and the results of your work will be so worth it. If possible, ask your butcher to trim fat and silver skin from the roast and then trim and tie it so the thickness is fairly even. And by all means, get a jump on prep and make the sauce a day or two ahead of serving if that works for your schedule. The recipe is a Yummly original created by Martha Holmberg.