Burger 21 is a fast-casual restaurant chain with 75 locations across the United States. Each Burger 21 restaurant has 21 different burger options, all made fresh and in-house. With a burger on nearly every corner, you start to wonder where the best place is to grab a burger.
Burger 21 offers 50 low calorie choices with less than 500 calories, according to the official menu and nutrition facts.
For more low calorie choices at Burger 21, see the full low calorie menu below.
We consider an item low calorie if it has less than 500 calories, but you can filter it differently by clicking the green filter button.
