We're doing a tenderloin with a diane sauce.
And I'll be using my latest meat gadget, The Meater, which is a wifi thermometer that works in the oven. It calculates cook time (can be a bit hit or miss on that), but it usually nails the time to pull it out then sit it to reach the actual desired temperature.
Nice little toy for those that like their beef right on the nuts in terms of done temp. It did a nice job with turkey also. I think there are less expensive models available, but can't speak to how those work, but this one I use every time a decent piece of meat hits the oven or grill.
It's also nice as you can just monitor progress on your phone to see where it's at, and if you're slow cooking ribs or something it will give you ambient temp as well. Nice little gadget.