Roasted Ratatouille Gratin

Name: Roasted Ratatouille Gratin
Ingredients: 1 medium red pepper; Canola oil spray; 1 medium eggplant (about 1 pound), cut into 1-inch cubes; 1/4 cup olive oil, divided; 1 leek, white part only, thinly sliced; 1 large shallot, finely chopped; 1 cup thinly sliced zucchini (about 1 medium); 1 cup sliced cremini mushrooms (about 5 medium); 1 teaspoon sea salt; Dash black pepper; 1/2 cup dry white wine (sauvignon blanc is nice); 1 cup (28-ounce) can good-quality plum tomatoes, chopped, with their juices to make 2; 1 tablespoon chopped fresh thyme; 1 tablespoon chopped fresh rosemary; 1 cup freshly grated Parmesan cheese; 1 tablespoon dry bread crumbs; 1/2 cup chopped fresh basil for garnish