Vegetable lasagna is a hearty and nutritious Italian vegetarian dish. It is made by layering lasagna noodles with a mixture of sautéed vegetables such as zucchini, bell peppers, spinach, and mushrooms, and ricotta cheese. The lasagna is then topped with marinara sauce and mozzarella cheese and baked until bubbly. This comforting and satisfying dish is a great way to enjoy a classic Italian meal without the meat.