Smoked Turkey and Sausage Gumbo

Name: Smoked Turkey and Sausage Gumbo
Ingredients: 3 tablespoons canola or corn oil, divided; 1 (12-ounce) package andouille sausage, sliced; 3 tablespoons unsalted butter; 1/3 cup unbleached all-purpose flour; 1 large yellow onion, diced; 1 medium green bell pepper, diced; 3 ribs celery, diced; 3 cloves garlic, minced; 6 cups smoked turkey stock*; 1/2 teaspoon each Kosher salt and black pepper; 1 teaspoon creaole seasoning; 1/8 - 1/4 teaspoon cayenne; 2 bay leaves; 3 cups chopped smoked turkey; For Serving:; ½ tablespoon gumbo filé powder; ¼ cup chopped parsley; ¼ cup chopped green onion tops; 2 cups hot cooked rice