Will be in Chicago for a week with Mom and will be staying at the Millenium Knickerbocker on Walton Place. Looking for casual eateries. Mom is not really into food, but she is fairly adventurous and her favorite way to eat is to graze the entire day. Any good places around the hotel, Magnificent Mile and the Art Intitute or other places where we might be visiting? I am planning our itinerary and we are museum and architecture buffs, so we have lots of those on the list to go to. Any suggestions nearby. Someone suggested the Cafe Spiagga. Any good? I would like to do a few nice dinners, but nothing too fancy wasn't planning on Charlie Trotter's or anything like that. Not planning to pack anything too dressy or formal. Any suggestions would be greatly appreciated. Thanks for any help.