The price tag is 99 cents per slider.
The veggie patty is sourced from Dr. Praeger's, an all-natural, frozen food company based in New Jersey.
According to Kumar, the Veggie Slider is pretty good, especially for vegetarians who've long yearned for a taste of White Castle.
Interestingly, during the filming of Harold and Kumar Go to White Castle, Kumar (yes, that Kumar) was actually eating veggie sliders at White Castle because Kal Penn, the actor who played him, is a vegetarian.
Among the biggest fast food burger chains, Burger King is the only one that offers a veggie burger option.
Photos by Kumar.