If you’re a mac and cheese purist, this post is likely going to make you very sad. And if I’m being honest, I didn’t really know what to call this dish, but “lentil mac and cheese with mushrooms and thyme” sounded decidedly better than “baked pasta with some lentils, ricotta, parmesan, maybe a pinch of red pepper flakes, you know…” And a bit more honesty: I fully intended to sprinkle…