Red Robin Gourmet Burgers is introducing an exclusive Bottomless Burger Pass for National Burger Month, offering a gourmet burger with a bottomless side every day in May for just $20. The passes will be available for purchase starting April 17, and a limited quantity is up for grabs. In addition, new limited-time menu items will be launched on April 28, featuring a variety of summer flavors to enjoy throughout the season at U.S. locations. Customers can also participate in the chance to win free burgers for a year during May. Red Robin aims to provide an exceptional burger experience with their delicious offerings and enhanced menu, catering to burger enthusiasts.