Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. McDonald's Takes a Nibble of the Plant-based Burger Associated Press CHICAGO - McDonald's is finally taking a nibble of the plant-based burger. In a very limited test in Canada, McDonald's said Thursday that it's introducing the PLT, or the plant, lettuce and tomato burger. It will be available for 12 weeks in 28 restaurants in Southwestern Ontario by the end of the month. The limited test is rolling out about six months after rival Burger King began testing the plant-based Impossible burger, which no surprise, is a rival to Beyond Meat. It's now selling those burgers nationwide. References Visible links Hidden links: 1. file://localhost/usa/50-years-mcdonalds-and-fast-food-evolve-around-big-mac .