Stuffed Mushrooms
["12 to 18 large mushrooms with stems", "1 egg", "1/2 stick margarine", "bread crumbs", "1/4 c. chopped onion"]
["Carefully remove stems from mushrooms leaving cap in tact. Peel each mushroom and set aside.", "Finely chop the stems.", "Saute stems and onion in margarine about 10 minutes, turn off heat and let cool.", "Stir in egg and bread crumbs until mixture is stiff but not dry.", "Fill each mushroom cap and bake at 350\u00b0 for 15 to 20 minutes."]
["mushrooms", "egg", "margarine", "bread crumbs", "onion"]