This is Martha Stewart's Pumpkin Pasta. Sarah Z. came over this weekend and we were looking for something vegan and interesting. We were skeptical at first, I mean pumpkin with pasta? But it was delicious! What we couldn't figure out was why we needed to bake it in the casserole dish after adding the pumpkin/pesto/kale mixture to the pasta. It didn't seem like it changed anything. Or did it?