PHILADEPHIA - Opera Philadelphia starts 2021 by inviting fans to an operatic amuse-bouche featuring Lee Hoiby's delightful one-woman opera, Bon Appétit! Based on two episodes of Julia Child's classic TV program, The French Chef, this short, critically acclaimed confection stars renowned mezzo-soprano Jamie Barton is directed by Ryan and Tonya McKinny, bringing audiences into the chef's storied kitchen as she bakes a chocolate cake.