Recent celebrity sightings at OpenTable restaurants… * Christina Ricci dined at Bocca di Bacco in the Big Apple. [NY Post] * Non-lipsyncher Kelly Clarkson had a pre-inauguration meal at Buca di Beppo in Washington, D.C. [TravelersToday.com] * Sofia Vergara stepped out at Katsuya in Brentwood, California. [Daily Mail] * Son-of-rod and squeeze-of-Adrian Maloof Sean Stewart enjoyed some Italian eats at Meatball Spot in Las Vegas. [...]