"...Burgers, available in one-third and two-third pound (double burger) options are build-your own, with the majority of toppings available for no charge, including lettuce, tomato, red onion, mayo, ketchup, mustard and dill pickles. Nueske's bacon is a $1.50 upcharge. Cheese is $1. And you'll pay $0.50 for caramelized onions and $0.75 for sauteed mushrooms..."
Read the full onmilwaukee.com article by Lori Fredrich here