Burger King Tests Plant-Based Meat With an Impossible Whopper

Burger King, known for meaty excess like its 1,150-calorie Bacon King sandwich, is now selling a plant-based burger.

The chain, owned by Restaurant Brands International Inc., announced a test run for the burger in 59 restaurants in the St. Louis area. Burger King says the sandwich will use patties from Impossible Foods Inc. The Impossible Whopper is flame-grilled like the regular Whopper, and comes with the standard tomatoes, lettuce, mayonnaise, ketchup, pickles and onion.