Ratatouille with Spicy Italian Chicken Sausage and Creamy Polenta

Name: Ratatouille with Spicy Italian Chicken Sausage and Creamy Polenta
Prep time: 20 min
Cook time: 25 min
Total time: 45 min
Cuisine: Italian
Ingredients: 1 pound ground spicy italian chicken sausage; 1/2 onion (copped); 1 clove garlic (minced or grated); 2 small zucchini (chopped); 2 small summer squash (chopped); 1 small eggplant (chopped); 2 red peppers (chopped); 4 tablespoons olive oil (divided); 1 ounce can diced tomatoes (28); 1 tablespoon fresh thyme (chopped); 1 tablespoon fresh oregano leaves (chopped); 1 tablespoon fresh basil leaves (chopped); 1 tablespoon balsamic vinegar; coarse salt and freshly ground pepper; 2 cups chicken broth; 2 cups milk; 2/3 cup polenta (I used Bob's Red Mill); 1/2 cup finely grated parmesan cheese; 1/4 teaspoon salt; 1/4 teaspoon pepper