Preheat oven to 350* gather all ingredients and have them within EASY reach of your cooking station. In a medium skillet melt 2 tbs butter.
Thin slice your mushrooms, green onion & chop your parsley, drain and pick shell particles from your oysters. Add mushrooms to your skillet and saute gently for 5-6 minutes transfer from pan. Add 3tbs butter to the pan and melt over medium heat, add your flour mixture and stir continuously until a roux is formed.
At this time add your sherry, oysters and all other ingredients except bread crumbs, stir well and gently cook ove med-low heat for 3-4 minutes. Place in a buttered 2 qt casserole dish top with the bread crumbs and bake at 350* for 20 minutes
Remove from oven let stand 5 minutes and stire well before serving over toasted french bread points...top with crumbled bacon and grated parmesan and the rest is HISTORY !!!!