You have to mention the deal when ordering and there's a limit of five Cheeseburgers.
A Sonic Cheeseburger features American cheese, crinkle-cut pickles, chopped onions, shredded lettuce, and sliced tomatoes on a beef patty with your choice of mustard, mayo or ketchup (you can check out my previous review of one here). They normally go for around $3.50 (may vary).
Photo via Sonic.
