Seafood & Mushroom Shells - Puff Pastry

Ingredients

• 1 package (10 ounces) Puff Pastry Shells, prepared according to package directions
• 4 tablespoons butter
• 2 1/2 cups thinly sliced mushrooms(about 7 ounces)
• 1 can Cream of Mushroom Soup or 98% Fat Free Cream of Mushroom Soup
• 1/2 cup dry white wine
• 1 tablespoon lemon juice
• 1 pound firm white fish fillet (cod, haddock, or halibut), cut into 1-inch pieces
• 1/2 cup grated Parmesan cheese