Lemon ricotta pasta with parmesan crumbs

Here’s a cheese-heavy pasta dish that’s the kind of simple thing to make when you can’t be arsed to properly cook… which, if you’re anything like us, is maybe quite often.  All you do is cook some dried pasta (a tube-y one works great), then heave it into a large pan with some of the pasta cooking water, lemon, herbs, ricotta, a bit…