• 10 1 package (10 oz.) mushrooms
• 1  package Boursin Garlic & Fine Herbs  
• 2 tbsp unsalted butter 
• 1/4 cup  finely chopped onion
• 1/4 cup  unseasoned dry bread crumbs  
• 1 tbsp  chopped fresh parsley
• 1 tsp salt  
• 1/8 tsp  ground black pepper  
• 2 tbsp grated parmesan cheese (optional)

Instructions:
Preheat oven to 400°F. Remove and chop mushroom stems. In 12-inch skillet, melt butter over medium-high heat and cook mushroom stems and onion, stirring occasionally, 5 minutes or until tender. In medium bowl, pour mushroom mixture over bread crumbs. Stir in Boursin, parsley, salt and pepper. Evenly spoon mushroom mixture into mushroom caps; arrange on baking sheet. Bake 20 minutes or until mushrooms are tender and golden. Sprinkle with cheese.