One lunch in Nashville: Where to go??
The one thing that is uniquely Nashville is Hot Chicken. Prince's is the inventor of the genre. There's also 400 Degrees that's good.
If you want something that's more typically pan-Southern, Arnold's or Monell's. For barbeque, hit Martin's in Nolensville south of Nashville, or B&C (Bacon & Caviar) in the Farmer's Market or on Franklin Rd in the Melrose area.
For upscale, Capitol Grille in the Hermitage Hotel. Also Sunset Grill in Hillsboro Village.
2001 Belcourt Ave, Nashville, TN 37212
10192 US Highway 27 N, Butler, KY 41006
2012 Clarksville Pike, Nashville, TN 37208
Next time you're in Nashville: Monell's, Monell's, Monell's. Beats the hell out of other places like it in the area. I'd second Martin's for BBQ.
Burger Up is a great place over by Sevier Park with creative, high-quality burgers and fantastic homemade ketchup and fries. It's the kind of place that I think back on often, one of the great surprises on my last trip to Nashville.