The main ingredient in traditional Italian lasagna is pasta, specifically lasagna sheets, which are flat, wide noodles designed for layering. To create a classic lasagna, the pasta sheets are alternately layered with ingredients such as ricotta cheese, mozzarella, parmesan, ground meats (often beef or pork), and a rich tomato sauce. The dish is then baked to create a comforting, hearty meal with distinct flavors. Though variations exist, especially regarding the choice of meats and sauces, the essence remains the same: a beautifully layered dish showcasing the creamy, cheesy, and savory elements that characterize Italian cuisine.