Re:St. Louis to Wisconsin Dells
Consider this another vote for the burgers at Monk's. Other places in the Dell's with good food: Taste of New Orleans, Mexicali Rose and breakfast at the Country Keg Saloon.
Also: Madison, WI is full of restaurants. Here are three that I reccommend: Kabul's (Afgahani), Baraka (African) and Himal Chuli (cuisine of Nepal). All three of these are located on State Street between the University and the Capitol building.
In downtown Bloomington, IL you can enjoy great pizza at Lucca Grill.
Have a good trip.