There's really not anything remarkable in that area. Probably the best bet is Caney Fork Fish Camp -- a theme restaurant that wants to be a chain, but isn't yet. You could drive a little way and go to Ellendale's -- they close at 10, though, so you'd be cutting it close.
2739 Old Elm Hill Pike, Nashville, TN 37214
Caney Fork Fish Camp
2400 Music Valley Dr, Nashville, TN 37214