Lasagna and spaghetti are all "spaghetti", just like macaroni, jiaozi, spaghetti, Bugatti, rigate, farfalle, macaroni and spaghetti are all spaghetti, some of which you don't know! I know a little myself, because I have done a lot in London, Milan and Sicily (Catania and Palermo) and eaten a lot.

I attached several photos of "lasagna in various shapes and colors" and spaghetti in different shapes and names to illustrate the varieties available. But I don't think it's meaningful to provide recipes when there are some excellent answers about recipes.

Below is the lasagna made of ordinary thin slices, which is filled with spinach and whey cheese and topped with sauce. Main difference: spaghetti shape factor: As others have written, there is a difference between flat and thin spaghetti (for lasagna) and long and not so thin spaghetti. Please consider that the spaghetti layer of 1 lasagna is only a fraction of a millimeter thick, while the thickness of spaghetti is usually above 1 mm.

Texture: In Cousin Italia, except flour (without water), pasta made of flour, water and salt (such as macaroni or macaroni) is quite different from dough made of eggs (such as lasagna, ravioli, dried noodles and lasagna). The taste is completely different, and the cooking method and time are also different.

The preparation of lasagna is based on oven cooking (dry and hot environment), while spaghetti is cooked in a lot of boiling water. Specifically, lasagna needs to be wrapped with three to five layers of thin spaghetti of different sausages, and made of butter, milk and flour (excluding cheese) using bechamel. Meat (Chili sauce) or vegetable sauce (very concentrated, no liquid will flow out when cooking) is placed between pasta layers. /kloc-bake in the oven at 0/80d degrees Celsius for 40 minutes to finish this dish. The pasta is boiled in boiling water for about 8- 10 minutes, depending on the manufacturer's instructions.

Of course, the recipes of lasagna and cheese pasta are very famous, and you can find detailed steps on the Internet.

If you go to Italy, please know that Bologna is famous for lasagna. We even call them "Allah Bologna lasagna" (lasagna Bologna style).