Bring a pot of water to boil, and cook pasta according to box instructions.
Melt butter in a large saucepan and saute chopped onion, rosemary, sage and garlic. Cook until onions soften.
Add in the butternut squash, vegetable broth, nutmeg, brown sugar, salt and pepper.
Stir, cover and cook for 10 minutes on medium heat - or until butternut squash is softened. Then add in milk, heavy cream, Parm, and kale. Stir and then add in pasta. Serve warm. Enjoy!