Work in Waltham? Treat yourself to some festive eats smack-dab in the middle of the day (or bring your colleagues along for a delicious lunch meeting). Osteria Posto is adding a ton of new appetizers, entrées and desserts to their lunch menu every weekday through Friday, December 21st. Some of the new dishes include duck confit with winter greens and cherry duck jus, rack of mustard & brioche crusted lamb with black rice and herb salad, and filet mignon served alongside broccoli rabe, herb roasted potatoes and a red wine demi-glace. That’s just a sampling of what they’re offering though — you’ll need to make a reservation to discover the full menu! Call 781.622.1400 to book a table between 11:30am and 2:00pm.