And now, the grand finale: the top layer. Noodles, sauce, and then a glorious, extravagant blanket of mozzarella. This is not the time for self-restraint. This is the Oscars of your lasagna. Go full Hollywood.
Some people sprinkle parmesan on top, too. Do it. It acts like a tiny sun hat, protecting the mozzarella from burning while creating that beautiful, crackly crust. You want those golden brown leopard spots of perfection.
Do not, however, put too much mozzarella. I once made a layer so thick it turned into a rubber sheet. We had to cut it with scissors. Aim for a generous, even layer. You want a gentle, gooey embrace, not a cheesy force field.