Alternative forms 
From Italian lasagna, lasagne, from Latin lasanum (“cooking pot”), from Ancient Greek λάσανον (lasanon, “trivet or stand for a pot”), pl. λάσανα (lasana). Others argue the Italian lasagna originally derived from the Arabic (Semitic) lawzinaj ("almond cake").
- Flat sheet of pasta.
- An Italian baked dish comprising layers of (1) with (usually) bolognese and bechamel sauce.
Usage notes 
In Italian, lasagna refers to one sheet of pasta and lasagne (the plural of lasagna) refers to the dish with several layers. This distinction is rarely observed in English.
lasagna f (plural lasagne)
- a flat sheet of pasta