Lasagna is a rectangular pasta dish (about 15x10 cm) made with a dough of flour and eggs; it is the protagonist of many Italian regional dishes. The lasagna sheets should be boiled, a few at a time, in a large and low saucepan containing hot salted water.
The sheets are then drained al dente and laid down to dry on a damp cloth. Generally they are prepared baked, stuffed with sauces, especially meat sauce, and other condiments.
In addition to the fresh ones made at home or prepared in specialized shops, lasagna sheets can be found already dry, they are equally good but their cooking time is slightly briefer (10 to 12 minutes for the precooked lasagna sheets, against 15-16 minutes for fresh ones).