Place ingredients in bread machine pan in order, as listed in recipe, up to softened butter. Make a well in center of ingredients and add yeast. Cut butter in four pieces and place a piece in each corner of the bread pan. Prepare using the basic cycle on your bread machine.
Note: As with all cheese breads, loaf appearance will be unusual due to the moisture of the cheese.
Tip: Mushrooms expel a lot of moisture, so be sure to get them as dry as possible, press between paper towels to remove moisture, before adding to the bread machine.