Located only in college campuses, The Den appears to be exclusively catered to twenty-somethings. Its interiors look more like a quick-service restaurant similar to Chipotle or Smashburger rather than a diner like Denny's.
While the new concept features some of the staple Denny's menu items like the Grand Slam and Grand Slamwich, they've added a variety of newer items to the menu. These new options include various "hand-smashed" burgers, burritos and sandwiches. Their burgers, in particular, are known for cramming breakfast items (eggs, bacon, potatoes) between the buns.
Currently, there are 10 locations sprinkled throughout college campuses across the United States.