With Shake Shack moving into the Los Angeles area, it's time to see how well you can recognize the competition.
To test the true burger aficionados, we're making this tough. All you get is the photo and an overview of ingredients.
Do you know which chains sell these burgers?
Photo credits, from top down: The Counter; Smashburger; Robert Lachman/Los Angeles Times; Essdras M. Suarez/Boston Globe; Kirk McKoy/Los Angeles Times; Habit Burger Grill