Did my digging last weekend.
Good news for all you chef groupies who like to follow your foodmakers wherever they lay their knives. Apparently Marianne Miller is cooking at Biella, on and off. Word from the cute guy at the host stand is that she's on the line, from time to time, cooking and contributing to the menu.
Last news of Miller was that she was working with the Saga Hill Cooking School in Wayzata. Indeed, the Biella website lists a menu created by Miller for a wine dinner held in conjunction with the school; I am intrigued by the super white tuna schnitzel with graham cracker tempura and white chocolate beurre.
Cute host guy said he thinks she'll be cooking again next week and that I should just call ahead to see if she's there.