Oh, yeah Kuan, that's a good one. The exec chef is Sandy D'Amato. It's casual and authentic French bistro food. He also has a find dining spot called Sanford that is superb. (He's a Beard Award winner and cooked for Julia Child's 80th birthday).
Take a look at our local paper's dining reviews
here. The reviewer, Dennis Getto, is usually right on. He recently re-reviewed Sanford and again gave it four stars. The review is posted right now, but will be archived I'm sure.
For dining with a view of the lake and gorgeous art museum, try Coast. For fine dining with a flair, try Lake Park Bistro. Those are just a start. Post questions about specific restaurants here, and somebody is bound to reply! We have a lot of people here who live in or around Milwaukee, or who visit often. There's a LOT more to Milwaukee cuisine than beer, brats and cheese (although they are good when the time is right).