"Layers of umami flavor from the beef and toppings make this mushroom Swiss burger recipe a family favorite. Try them on the grill for a flame-cooked finish...."
INGREDIENTS
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1-1/2 pounds ground beef
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1 pound sliced fresh mushrooms
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1 can (10-1/2 ounces) condensed cream of mushroom soup, undiluted
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1 cup water
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6 slices Swiss cheese
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6 hamburger buns, split