Gwen Stefani may have left town --along with the rest of No Doubt--after a four-night run in Irvine, but I wonder if she had time to eat the dish named after her at the Anaheim White House while she was in OC.Yes, indeed, Ravioli Gwen Stefani--lobster-filled ravioli with basil on a sauce of ginger and citrus--is high up on the list of appetizers (at lunch) and antipasti (dinner). But, wait there's more! You can also tuck into Ahi Tuna Tartare Ferragamo, Gnocchi al Pomodoro Calvin Klein and Pa