I'll be in Chicago this week on business. Looking for three nice dinner restaurants but not overly pricey--ballpark $15-25 entrees if possible. For one person and within safe walking distance (a mile or so). I'm not a big meat person (except BBQ ribs--though i do enjoy well-cooked meat dishes), love seafood, love interesting ethnic. Prefer relatively quiet places. Diner chatter is fine, but no loud live bands and such. Would appreciate suggestions.