Several of you have mentionied Arthur Treacher's Fish and Chips - they had the best fish filet sandwiches, with goopy cheese sauce and cole slaw on them. Yum!
And one person said Dalt's. When hubby and I were young newlyweds in Nashville, TN 23 years ago, that was one of our very favorite places to eat. I loved their London Broil, and oh, my, that chocolate malt cake!
It's been almost 20 years since we moved away from Nashville, but Google tells me that Dalt's is still right there where we left it...
http://www.daltsgrill.net/