Baby Shower Brunches

Where would be a great restaurant to have a brunch/lunch style Babyshower in Chicago?
My fiance and I are planning a baby-shower for October 4th. We are looking for a cute restaurant to have around 30-35 girls hang out for either brunch or lunch. Nothing too pricey. Any suggestions?
Chicago has a long list of world-renowned upscale fine dining restaurants serving a wide array of cuisine from some of the most well-known chefs in the United States. Some notable destinations include Frontera Grill, a gourmet Mexican restaurant owned by Food Network star Rick Bayless, and Everest, a nouveau-French restaurant on the top floor of the Chicago Stock Exchange. Chicago also features strips of restaurants in the city’s ethnic districts, including Greektown on South Halsted, Little Italy on Taylor Street, just west of Halsted, and Chinatown on the near south side. Each neighorhood is packed with restaurants in touch with their patrons tastes. Check out the site below and get everything you need to know about, well, restaurants in Chicago! This is the first step to a fully satisfying experience of Chicago’s many gustatory delights.
Erin’s Surprise Shower