We live in the area and have enjoyed What a Burger for years. My grown daughters have moved away yet crave it when they visit. You can park and dine inside (order at the counter) or order over the car side speakers and they will serve you. Very tasty burgers, fries, hot dogs and onion rings to name a few. They do not serve healthy fare but it tastes great. Definitely a throwback if you're not on a diet.
Ps. A very friendly southern venue.