Owosso's Meeting Place Since 1964! When Original Owners Jim "Jumbo" and Pat Mahaney opened the doors, Jumbo's became THE place for great conversation, cold beer, and the best burger around. The current owners (Todd and Shelly Sydow) continue to strive to uphold the high standards set by the Mahaney's all those years ago. Famous for the Jumbo Burger, we serve 100% ground beef steak burger patties, homemade specials and soup, and we offer 12 taps featuring microbrews, many from local Michigan brewers. From our menu staple 'The Jumbo Burger' to the food-eating challenge of the 'Heart Attack Burger' to the Jumbo specialty cocktails, we have something for everyone. Come visit us today, and we promise you'll be coming back soon for more!