Grilled Vegetable Panini

Name: Grilled Vegetable Panini
Ingredients: 1/4 cup olive oil; 2 small Japanese eggplants or 1 medium to large regular eggplant, cut crosswise into 1/2-inch-thick slices; 2 zucchini, cut crosswise into 1/2-inch-thick slices; 1 small red onion, cut into 1/2-inch-thick slices; Salt and freshly ground black pepper; 2 baguettes (each about 2 feet long); 1/2 cup Basil Pesto, recipe follows; 8 ounces fresh water-packed mozzarella cheese, drained, sliced; 2 tomatoes, sliced; 1/2 cup roasted red peppers; 8 large basil leaves, optional