When I first moved to Nashville I spent a lot of time looking for 'local' places, the special restaurants you never want the tourists to discover. Stratton's quickly became one of my favorites. Not a 50's diner recreation, this is the real thing - opened in the 50's and still going strong. Great burgers, real shakes and malts, quick service, nice folks. Memories galore on every wall. Just remember to bring cash - they don't take credit cards or checks.
Pros: food, price, personality
Cons: cash only, lunch crowds