It was 1987 when White Castle first brought its Sliders to retail, making it what is said to be the first fast food restaurant to bring products from the restaurant to the retail channel. In fact, many of White Castle’s frozen options come from its restaurants, where consumers request that certain menu items be made available in retail.
Fast forward to present day, and White Castle still listens intently to its customers. That’s why in 2015, it partnered with Dr. Praeger’s Purely Sensible Foods, Elmwood Park, N.J., to release its first vegan offering—a veggie slider made with carrots, zucchini, peas, spinach and broccoli.