Turkey and Mashed Potatoes Casserole Recipe | Say Mmm

Ingredients

• 2 tablespoons olive oil
• 1 medium onion, chopped
• 3 cloves of garlic, minced
• 4 cups shredded leftover turkey
• 1 cup leftover gravy
• Salt and pepper to taste
• 1/3 cup chopped parsley
• 4 cups mashed potatoes
• 1/2 cup heavy cream, if necessary
• 1/2 cup freshly grated parmesan cheese