A vegan Burger King customer, Philip Williams, is suing the fast-food chain after cooking its plant-based patties on the same grills it uses for meat.
Mr Williams claims the way the Impossible Whopper burger is cooked leaves it “coated in meat by-products”.
The lawsuit Mr Williams filed says Burger King does not clearly advertise their plant-based burgers are cooked with meat.
A spokeswoman from the supplier, Impossible Foods, says vegetarians and vegans are welcome to ask for their vegan burgers to be cooked in a microwave.