This is one leg of our annual cross country trip. We've taken a more northernly route before, but decided to go through the "heartland" this time. Across Indiana and Illinois on I74 to I80 unless someone tells us that there's great food somewhere along the back roads of Rte 34 or ??? We tend to eat "roadfood" for lunches and chowhound chow for dinners. Any help would be appreciated. And in Des Moines?