The brand’s Original Slider features a 100 percent beef slider patty, steam grilled on a bed of onions and served with a slice of pickle on a signature bun. It comes topped with ketchup on the East Coast.

White Castle’s National Fast Food Day deal is available at participating locations for one day only on Thursday, November 16, 2023.

National Fast Food Day is celebrated annually on November 16.

Image via White Castle

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