Cover with foil. Bake at 375°F for 30 minutes. Then remove foil and bake another 15. That final blast is critical. It gives you those brown corners everyone fights over.
Let it rest. This is the hardest part. Let it sit for 15 minutes. No, not 5. 15. The noodles are still dancing. The cheese is settling. Cutting too early equals a sloppy mess.
While it rests, clean the kitchen. Or just stare at the pan. Both are acceptable.
