I know that for many here it would not be a reasonable day trip. But for those that it is, Strawberry Hill Cafe is a must stop for lunch. It is located about 10 miles west of Chesnee SC on Hwy 11.
You can't miss it, The cafe is on one side of the road and the Strawberry Hill farmers market is on the other. Lots of people, some locals, some regulars, some just passing through and some on bikes.
Without question one of the best hamburgers I have ever had and it was served from a staff of super friendly people. They also have about 45 flavors of ice cream.
Strawberry Hill USA