RE: Goober burgers
There are some earlier posts in one of the forums here regarding the blueberries mixed into hamburger. Am sure they can be found by utilizing the search feature. McGuire's Irish Pub in Pensacola, FL, includes peanut butter as one of the ingredients (along with other "crazy" ones, such as kraut, etc., etc.) in or on its big "Garbage Burger". It all sounds awful but in reality everything mixed together is pretty good.