In a press release, Burger King said the Whopperrito is made with many of the same ingredients as the namesake cheeseburger, but with a couple of exceptions. Instead of mayonnaise and cheese, it comes "smothered" with a layer of creamy queso sauce; and instead of the same old Whopper burger patties, it comes with flame-grilled burger beef that's seasoned with a blend of spices for a Tex-Mex flavor. Oh, and it comes in a tortilla instead of on a bun, of course.
In other words, you can expect the Whopperrito to taste sort of like the original Whopper and not like the original Whopper at all. Like Mac N' Cheetos, it's basically a whole new, greasy, fast food monster.