Tangy Stuffed Mushrooms

2 lbs. large mushrooms 4 T. butter 1/4 c. chopped onion 1 ( 3 oz. ) pkg. cream cheese 2/3 c. barbecue sauce 1/4. cup heinz 57 steak sauce 1/4 c. Parmesean cheese 1/2 lb. sausage
Preheat oven to 350. Remove stems from mushrooms. Cop stems, setaside. In skillet melt butter lightly brush caps with some of the butter. In remaining buter cook onions, chopped mushrooms,and sausage. Drain. Stir in cream cheese, barbecue sauce and steak sauce. Heat until well blended. Spoon into mushroom caps. Arrange in shallow baking dish, sprinkle with Parmesean cheese and bake 8 to 12 minutes.