Baked Polenta with Sausage

Name: Baked Polenta with Sausage
Ingredients: 3 cups water; 1 cup milk; 9.25 ounces instant polenta; 0.5 cup shredded Parmesan cheese; 2 tablespoons butter; 1 tablespoon olive oil; 2 (3.5 ounce) links sweet Italian sausage, casings removed; 1 cup sliced mushrooms; 0.5 cup chopped onions; 3 cloves garlic, diced; 1.5 cups dry white wine; 1 (14.5 ounce) can diced tomatoes; 1 (6 ounce) can tomato paste; 1 tablespoon white sugar; 1 teaspoon Italian seasoning; 0.5 teaspoon dried oregano; 2 cups shredded mozzarella cheese