Just saw it on the Tutto Gusto Wine Cellar Lounge menu as I was dreaming/planning of my lounge crawl for upcoming September trip. I bet you could request it at their sister restaurant, Tutto Italia. Also, California Grill boasts an impressive wine collection displayed in a wall as you enter the restaurant and would be worth an inquiry there as well. In addition, being the Bianco lends itself well to white fish, Flying Fish would be another restaurant I wouldn't be surprised would have in house, available upon request, even if not featured on their menu.
CHEERS!