Ratatouille Over Polenta

Name: Ratatouille Over Polenta
Ingredients: 1 cup cornmeal (sometimes called polenta); 2 tablespoons grated Parmesan cheese; 2 tablespoons olive oil; 1/2 cup onion, chopped (about 1 small onion); 3 cloves of garlic, minced; 1 small eggplant, sliced; 1 zucchini, sliced; 1 yellow squash, sliced; 1/2 teaspoon salt; 1/4 teaspoon pepper; 1 can (14.5 ounce) petite diced tomatoes; 1 teaspoon fresh thyme, chopped