I think French cuisine may be the most overlooked high quality cuisine, one that Chicago is especially good at but just doesn't get talked about a whole lot. I haven't been to every French restaurant in Chicago - not even close - but the ones I've been to recently have been exceedingly good. The best bistros I can remember are
Bistro Bordeaux, where I ate last night (see that discussion), and
La Sardine, where I ate last year. Both have great 3-course deals on virtually the entire menu, on Tuesdays at La Sardine for $25 and Wednesdays at Bistro Bordeaux for $28.95. I haven't been to
Le Bouchon but keep in mind that it is the sister restaurant (same ownership) of La Sardine. At the high end,
Everest is still doing some amazing French cuisine, both traditional and contemporary. It's a bit pricy, although it's less than most of the other "top tables" around town, and they still have that $50 3-course early bird pre-theater menu.
The other thing to realize is that lines between French cuisine and other cuisines are blurring. Dishes like steamed mussels, sauteed skatewing, braised short ribs, and creme brulee can be found at French bistros like these, at contemporary American restaurants like
Cafe des Architectes and
Sweets and Savories (both of which have 3-course specials) and
Chef's Station and
Vie, and even at Mexican restaurants like
Mexique and
Mundial Cocina Mestiza. I had a wonderful dinner of cream of carrot soup with creme fraiche and a fabulous roast duck last month, in
Vivere in the Italian Village complex.
Two restaurants where I have had the very best mid-priced Chicagoland meals in the past few years are both places that specialize in a contemporary version of French cuisine:
Michael in north suburban Winnetka, and
Tallgrass in southwest suburban Lockport. If you haven't been to those, you're really missing something special (although perhaps the LDC would appreciate dining at either or both).
So there you have a baker's dozen restaurants where you can get a fantastic dinner - some with classic French cuisine, and others with modern interpretations/variations of French cuisine. They are all superb and you can't go wrong with any of them.