Share this article Share this article COLUMBUS, Ohio, Feb. 16, 2021 /PRNewswire/ -- Good news from White Castle! Now through April 4, the fast-food hamburger chain, most famous for its 100% USDA beef Sliders, is offering unique seafood options that its Cravers can't get anywhere else – Shrimp Nibblers ® and Seafood Crab Cake Sliders! These fan favorites were added to the menu just in time for Lent. White Castle Brings Back Two Seafood Craver Favorites – Seafood Crab Cake Sliders and Shrimp Nibblers® – Through April 4 The Seafood Crab Cake Slider features a slider-sized seafood crab cake topped with creamy creole sauce on White Castle's signature bun. Last offered in 2019, it's available in all markets and sold individually or as part of a combo meal. The Shrimp Nibblers are oh-so-very nibbly bite-sized butterfly shrimp coated with crispy golden goodness. Available in all markets except Scottsdale, they're sold in small, medium and sack sizes.