Start with the ground beef. In a pot, heat a little oil and sauté the onion after blending it in a food processor. Add the ground beef, salt, and pepper, and break it up with a fork or spoon until it forms small pieces. When the beef turns light in color, add the tomato juice, tomato paste, sugar, and cinnamon stick. Add about 1 cup water (enough to just cover the beef). Simmer for about 30 minutes, adding more water if needed.

Once the beef is ready, remove the cinnamon stick. Spread the beef evenly over the pasta in the baking dish. Pour the béchamel over the beef and spread it evenly. Sprinkle some shredded cheese on top and bake at 350°F (180°C) for about 30 minutes, until golden brown.