Things might not get ugly but they’ll certainly get tasty at Lucy’s (242 Harvard Street, Brookline) on December 12. That’s when the restaurant hosts its second Battle of the Chefs, featuring a batch of talented whippersnappers who are all 30 years old or younger. Competitors include Andrew Coleman (Lucy’s), Delio Susi (Amelia’s Trattoria), and Jared Hargreaves (Harvard Gardens). Diners will vote on whose course they enjoy most. The five-course dinner begins at 7 pm and the cost is $60; call 617.232.LUCY for reservations and information.