V is for Vegetarian Ragout over Cheese Polenta with Red Pepper Coulis

Name: V is for Vegetarian Ragout over Cheese Polenta with Red Pepper Coulis
Ingredients: 3 tablespoons cornstarch; 1 1/2 cups vegetable broth; 3 ounces (6 tablespoons or 3/4 stick) butter; 2 roasted red bell peppers, seeded and peeled; 1 clove garlic; 2 cups vegetable stock; 2 cups heavy cream; 1 cup cornmeal; 1 cup grated Parmesan; Salt and pepper; 1/8 cup grapeseed oil; 1 onion, medium diced; 2 cloves garlic, chopped; 1 carrot, peeled and diced medium; 1 zucchini, medium dice; 1 yellow squash, medium dice; 1 small eggplant, medium dice; 3 tablespoons tomato paste; 1 tablespoon chopped fresh parsley leaves; 2 teaspoons chopped fresh thyme leaves; 1/4 cup kalamata pitted black olives, cut in 1/2; Kosher salt; Freshly ground black pepper; 2 fresh plum tomatoes, diced; 6 to 8 sprigs fresh basil