Oven Barley Casserole
["1 c. pearl barley", "1 can Campbell's onion soup", "1 can water", "1 Tbsp. chopped parsley", "1 tsp. beef concentrate or 1 bouillon cube", "1 (4 oz.) can mushrooms or approximately 12 fresh", "4 Tbsp. butter"]
["Note:", "I add 1/4 cup wild rice and another cup of water."]
["pearl barley", "Campbell's onion soup", "water", "parsley", "beef concentrate", "mushrooms", "butter"]