Source: Dev's
adapted by http://theresalwaysthyme.blogspot.com
makes one sandwich.
2 slices pumpernickel or Rye or any kind of hearty, crusty bread you like
4 slices of thin-sliced Jarlsberg cheese
alfalfa sprouts
2-3 large white mushrooms, sliced thin
Take two slices of pumpernickel and add a slice or two of Jarlsberg on each side. Put it on the top rack of the oven, and put some foil on the bottom rack in case it melts off the bread. Bake it for a few minutes at 350º F until the cheese is melted. Then top it with alfalfa sprouts and slices of fresh white button mushrooms, close the sandwich, squish it together and there you have it!