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Lasagna, also known as lasagne, is a type of pasta, possibly one of the oldest types, made in very wide, flat sheets. The same-named Italian dish is made of stacked layers of lasagna alternating with fillings such as ragù, béchamel sauce, vegetables, cheeses, and seasonings and spices. The dish may be topped with grated cheese, which becomes melted during baking. Typically cooked pasta is assembled with the other ingredients and then baked in an oven. The resulting baked pasta is cut into single-serving square or rectangular portions.