This Mediterranean vegetable casserole is a healthy and flavorful vegetarian dish that is packed with fresh ingredients and bold flavors. Made with a variety of vegetables, including bell peppers, zucchini, eggplant, and tomatoes, this casserole is a celebration of Mediterranean cuisine. The vegetables are sautéed until tender and then mixed with a tangy tomato sauce. The sauce is made with fresh tomatoes, garlic, and herbs, and is simmered until thick and flavorful. The casserole is then baked until the flavors have melded together and the vegetables are tender. Serve it with a side of crusty bread or couscous for a complete and satisfying meal.