There are countless variations of lasagne throughout Italy. What they all require is a layering of ingredients and flavors: Paper-thin sheets of fresh pasta are usually combined with ragù, bechamel, and cheeses—from mozzarella to scamorza, to a simple dusting of Parmigiano Reggiano.
My grandma’s version calls for béchamel sauce, her Tuscan ragù, mozzarella, Parmigiano Reggiano, and fresh pasta. Then, her secret ingredient: moderation.