Question: What is the shape of lasagne?
About the article "Lasagne", section "Abstract".

Candidate passages:
Lasagne ( or or , , singular lasagna) are a wide, flat pasta shape, and possibly one of the oldest types of pasta.
The word also refers to a dish made with several layers of lasagne sheets alternated with sauces and various other ingredients.
Lasagne originated in Italy, traditionally ascribed to the city of Bologna (Emilia-Romagna), in where the first modern receipe was created and published and became a traditional dish.
Traditional lasagne is made by interleaving layers of pasta with layers of sauce, made with ragù, bechamel, and Parmigiano-Reggiano.
In other regions and outside of Italy it is common to find lasagne made with ricotta or mozzarella cheese, tomato sauce, various meats (e.g., ground beef, pork or chicken), miscellaneous vegetables (e.g., spinach, zucchini, mushrooms) and typically flavored with wine, garlic, onion, and oregano.
In all cases the lasagne are oven-baked.
Traditionally, pasta dough prepared in Southern Italy used semolina and water and in the northern regions, where semolina was not available, flour and eggs.
Today in Italy, since the only type of wheat allowed for commercially sold pasta is durum wheat, commercial lasagne are made of semolina (from durum wheat).
Emilio-Romano’s intensive farming economy in the northern region of Italy results in plentiful dairy and meat products, and their commonality in regional cooking – more so than the olive oil found in southern regions of Italy.
Pastas from Emilio-Romano and its capital, Bologna, are almost always served with a ragú, a thick sauce made from ingredients such as onions, carrots, finely chopped pork and beef, celery, butter, and tomatoes.
"Piñon" is traditional from Puerto Rico; similar to lasagne, it uses sweet plantains (amarillitos) to replace the pasta layers.
A similar dish called "Pastelon" is made with layers of mashed plantains. 
In the Ancient Rome, there was a dish similar to the lasagne called "lasana" or "lasanum" (Latin word for "container", "pot") described in the book "L'arte culinaria" by Marcus Gavius Apicius, but the word could have a more ancient origin.
The first theory is that "lasagne" comes from Greek λάγανον ("laganon"), a flat sheet of pasta dough cut into strips.
The word λαγάνα ("lagana") is still used in Greek to mean a flat thin type of unleavened bread.
Another theory is that the word lasagne comes from the Greek λάσανα ("lasana") or λάσανον ("lasanon") meaning "trivet or stand for a pot", "chamber pot".
The Romans borrowed the word as "lasanum", meaning "cooking pot" in Latin.
The Italians used the word to refer to the dish in which lasagne is made.
Later the name of the food took on the name of the serving dish.
A third theory proposed that the dish is a development of the 14th century English recipe "Loseyn" as described in "The Forme of Cury", a cook book in use during the reign of Richard II.
This has similarities to modern lasagne in both its recipe, which features a layering of ingredients between pasta sheets, and its name.
An important difference is the lack of tomatoes, which did not arrive in Europe until after Columbus reached America in 1492.
The earliest discussion of the tomato in European literature appeared in a herbal written in 1544 by Pietro Andrea Mattioli while the earliest discovered cookbook with tomato recipes was published in Naples in 1692, though the author had apparently obtained these recipes from Spanish sources.
As with most other types of pasta, the word is a plural form, "lasagne" meaning more than one sheet of "lasagna". 
Copparo's cuisine has both simple and sophisticated dishes, being a combination of the tastes of the Estense's noble cuisine and the farmers' traditional cuisine.
It includes main courses such as "pasticcio di maccheroni" or the popular cappelletti and lasagne all made with fresh egg pasta.
The ancient Ferrara bread, the renaissance “ciupèta", is widely available throughout the town, still prepared with the old recipe and protected as a European mark “IGP", with its unique and strange shape that recall in the same time the male and the female symbols. 
Pastelón is traditional from Puerto Rico; similar to lasagne, it uses sweet plantains to replace the pasta.
Pastelón is a sweet and salty blend of sweet plantains, meat, cheese, and sauce.
The meat varies in location but traditionally the pastelón is made with picadillo.