White Castle is known for its 77-cent beef sliders served in tiny cardboard boxes.
But now, the 97-year-old chain is testing out a more vegetarian-friendly option.
On Thursday, 140 White Castle locations in New York, New Jersey, and Illinois debuted a plant-based slider by the Silicon Valley startup Impossible Foods. Founded in 2011, Impossible has created a meatless burger that mimics the taste of beef.
We recently went to a White Castle in Brooklyn to