Bloomington, Indiana, is home to Indiana University and the town square has a good selection of American and ethnic restaurant. Weekend traffic can be a nightmare and Sunday breakfast out seems to be obligatory so expect long lines at restaurants.
Then, for a real treat, get on Indiana Highway 46 and head east on one of the great drives anywhere through winding and rolling country. Stop in beautiful Nashville and continue on to Gnaw Bone (how's that for a town name. On May 9th, the "world's most difficult 10K run" was held.
That Indiana Highway 46 from Columbus, Indiana, (also an interesting visit) is spectacular. I think those Hoosiers are keeping it secret. You rarely hear about it.