If you want the focus of your Christmas day to be on time with family and friends (oh, and opening a gift or two), turn to this easy, streamlined menu. The centerpiece isfilet mignonssurrounded byjewel-colored roasted vegetables, withfrisée saladand creamysmashed roasted potatoeson the side. It finishes with a snowywhite chocolate moussethat’s fun to dress up with seasonal garnishes (try pomegranate seeds and pistachios for a particularly festive look). With just a couple quick prep tasks in advance, and some hands-off roasting two hours out, the bulk of the cooking happens in the last 30 minutes.