Stuffed Mushrooms
["20 medium size mushrooms", "1/3 c. butter", "3 Tbsp. chopped onions", "1/2 c. Parmesan cheese", "1/2 tsp. salt", "1/8 tsp. garlic salt"]
["Finely chop mushroom stems; saute with onions in butter for 3 to 4 minutes.", "Add remaining ingredients.", "Fill mushroom caps with mixture.", "Put in greased baking dish.", "Bake at 350\u00b0 for 30 minutes."]
["mushrooms", "butter", "onions", "Parmesan cheese", "salt", "garlic salt"]