Meatless Whopper, Petition Put Veggie Pressure on Rival

McDonald's is feeling the heat on veggie burgers. More than 160,000 people have signed a petition calling for the chain to add a meatless option to its menu, the Guardian reports. McDonald's has tested a McVegan in Finland and Sweden, and put it on the menu at its headquarters in Chicago. An NPR reviewer found it worth a try. But the sandwich isn't otherwise available in the US yet. In addition, Burger King just began testing its Impossible Whopper. It has everything the chain's signature Whopper has—except beef. It has a plant-based patty instead. Because the sandwich comes with mayo, the Guardian points out, it's not considered vegan. The Impossible Whopper is available only in St. Louis at the moment. (Breakfast, starting with coffee, is another battleground for the rival chains.)