Finish with a final layer of lasagne and the rest of the white sauce. Bake for 35–40 minutes, or the pasta has softened and the topping is nicely browned and bubbling. Stand for 5 minutes before ...
Cook the pasta in a large saucepan of boiling salted water for 10 minutes, or according to the packet instructions. Drain the pasta, reserving some of the cooking water. Meanwhile, heat a splash ...