Stuffed Mushrooms
["12 large mushrooms", "2 to 3 Tbsp. melted butter", "salt and pepper", "3 Tbsp. minced onion", "2 Tbsp. butter", "1 Tbsp. oil", "3 Tbsp. minced scallions", "reserved mushroom stems, minced", "3 Tbsp. bread crumbs", "1/4 c. grated Swiss cheese", "1/4 c. grated Parmesan", "4 Tbsp. parsley", "1/2 tsp. tarragon", "salt and pepper", "2 to 3 Tbsp. cream", "3 Tbsp. grated Swiss cheese"]
["Remove stems from mushrooms and save for stuffing.", "Brush caps with melted butter.", "Put in lightly buttered pan and sprinkle with salt and pepper.", "Saute onion in butter and oil 3 to 4 minutes. Add scallions and stems; saute over moderate-high heat for 6 to 8 minutes.", "Turn off heat and mix in bread crumbs, parsley, tarragon and seasonings.", "Add 1/4 cup grated Swiss cheese and Parmesan cheese, a spoonful at a time.", "Blend in cream just to moisten. Fill mushroom caps with stuffing.", "Top each with remaining 3 tablespoons of Swiss cheese.", "Bake in 375\u00b0 oven for 15 to 20 minutes."]
["mushrooms", "butter", "salt", "onion", "butter", "oil", "scallions", "reserved mushroom stems", "bread crumbs", "Swiss cheese", "Parmesan", "parsley", "tarragon", "salt", "cream", "Swiss cheese"]