Whenever I have a Thanksgiving or Christmas party,
this is the dish I turn to: It pleases meat-eaters and vegetarians alike. The buttery butternut squash, parsley, sage, and hazelnut filling is good enough to eat on its own; adding the rich white sauce along with the fresh mozzarella and Parmigiano-Reggiano puts it over the top. The filling and sauce can be made a day ahead, making the dish very easy to assemble at the last minute with no-boil lasagne noodles. —Diane Abrams, Director, Gourmet Books