Lasagna, Every Way
In Bologna it's thin green pasta, a slow meat ragù, béchamel and Parmigiano. In Naples it's a Carnival feast with tiny meatballs and ricotta. America layered in ricotta and mozzarella and made it the potluck champion. Here is every version, step by step.

Lasagne Verdi alla Bolognese
Thin sheets of green spinach pasta layered at least six times with slow-cooked ragù, a light béchamel, butter and plenty of Parmigiano Reggiano. No ricotta, no mozzarella.
Neapolitan Carnival Lasagna (Lasagna di Carnevale)
Curly dried lasagna layered with a long-simmered Neapolitan tomato ragù, tiny meatballs, sliced sausage, ricotta, fresh mozzarella, hard-boiled eggs and salami: the Carnival feast before Lent.
Vincisgrassi alla Maceratese
The Marche's protected baked pasta: seven or eight layers of Marsala-scented egg pasta with a ragù of chunked chicken, veal and pork plus chicken livers, a little béchamel and a crisp Parmigiano top.

Classic American Lasagna with Ricotta and Mozzarella
The lasagna most Americans grew up with: a quick beef, pork and veal tomato sauce, a basil-flecked ricotta layer and a blanket of melted mozzarella, built with no-boil noodles.
White Chicken Lasagna (Alfredo-Style)
A tomato-free lasagna of tender poached chicken and golden mushrooms in a garlicky Parmesan white sauce, under a lid of melted mozzarella.
Spinach and Ricotta Lasagna
A meatless lasagna with a bright green spinach-ricotta filling, a fresh basil tomato sauce and plenty of mozzarella and Parmesan.
Lasagna Roll-Ups
Curly lasagna noodles spread with herby ricotta, rolled into spirals and baked in a beef, mushroom and pepper tomato sauce under melted mozzarella.
35-Minute One-Skillet Lasagna
Broken lasagna noodles simmered right in a meaty tomato sauce in one covered skillet, finished with Parmesan and creamy dollops of ricotta. No oven, no layering.
Restaurant-Style Lasagna Classico, Inspired by Olive Garden
Inspired by, not official: a big, saucy restaurant-style lasagna with a beef-and-Italian-sausage meat sauce and four cheeses: ricotta, mozzarella, Parmesan and Pecorino Romano.