Prepare the meat sauce the day before. Sauté the onion, garlic powder, and carrot. Once softened, add the ground beef and cook until it changes color.

Let it come to a boil and add water if needed. Add the spices and let it simmer. Shortly before it's done, add the tomato sauce and cook until most of the liquid is absorbed.

Boil the pasta for a few minutes less than the package instructions.

Prepare the béchamel sauce following the directions.

In a 12x14 inch (30x35 cm) baking dish, add the pasta. Mix in a little meat sauce, some béchamel, and some grated cheese.

Pour half the béchamel over the pasta, then add the meat sauce, and top with the remaining béchamel.