We really liked this healthy baked pasta dish with butternut squash and ricotta... I've made similar butternut squash pasta sauces in the past, but baking the whole thing with some parmesan cheese and walnuts on top really made this meal much tastier than the non-baked version! It gave it a crunchy texture and saltiness in contrast to the soft and sweet butternut sauce.
The only changes I made to the recipe were to add a small amount of ricotta and grated parmesan into the sauce in addition to dotting it on top for baking.