Spotted by a Brand Eating reader in Jacksonville, Fla., the limited time Beef Brisket Cheeseburger combines the best parts of a good old southern barbecue in the most inglorious ways possible. Strips of sliced beef brisket slathered in barbecue sauce, melted cheddar cheese, and crispy fried onions all make an appearance. And that's on top of the quarter pound beef patty and inside the two halves of Wendy's new cornbread-style bun: the first of its kind as far as we can tell.