Stewfato: Stewed Chicken

Name: Stewfato: Stewed Chicken
Ingredients: Salt and pepper, to taste; 2 chicken breasts; 2 chicken legs; 2 chicken wings; 3 tablespoons olive oil; 2 small onions, chopped; 2 carrots diced; 2 cloves garlic, chopped; 1 pound button and portobello mushrooms, sliced; 2 tablespoons chopped parsley plus more, for garnish; 1/2 (6-ounce) can tomato paste; 1/2 cup white wine; Large pinch ground cinnamon; 1 (16-ounce) can chicken broth; 10 ounces instant polenta; Freshly grated Parmesan