(TrendHunter.com) The Burger King Impossible King Sandwich is a new plant-based menu item arriving just in time for the summer for consumers to order in place of meat-based alternatives. The burger features an... (TrendHunter.com) The Burger King Impossible King Sandwich is a new plant-based menu item arriving just in time for the summer for consumers to order in place of meat-based alternatives. The burger features an...