<p>For National Burger Day Tien Windaur whips up one of his "Flathead Monsters" on Wednesday, May 28, at Tien's Place in Columbia Falls. The burger is not officially on the menu but Tien has been making it as a sort of private challenge for customers for 11 years. If someone can eat the whole thing, it's free. The "Flathead Monster" contains three patties, nine slices of cheese, sauteed mushrooms, lettuce, onion, tomato, and two grilled cheese sandw…
June 2, 2014
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June 2, 2014 4:08 p.m.