This Roasted Vegetable Cannelloni Bake is a delicious and hearty vegetarian dish. It features a medley of roasted vegetables, including bell peppers, zucchini, and eggplant, layered with creamy ricotta cheese and marinara sauce. The cannelloni pasta is then baked until golden and bubbly, creating a satisfying and flavorful meal. Serve this dish with a side salad for a complete and nutritious dinner.