Mushroom Walnut Bisque with Ricotta Salata

Ingredients

• 8 tablespoons 1 stick unsalted butter
• 2 cups assorted wild mushrooms (chopped)
• ½ cup walnut pieces
• 1 medium yellow onion (chopped)
• 1 medium carrot (chopped)
• 1 celery stalk (chopped)
• Kosher salt (to taste)
• Freshly ground black pepper (to taste)
• 2 cloves garlic (chopped)
• ½ cup dry white wine
• 4 cups vegetable broth
• 1 cup heavy cream
• ½ cup chopped fresh parsley
• 1 cup shaved ricotta salata
• Walnut oil (to garnish)