Place the cup of pasta water in the blender with the squash and the 1/4 c. heavy cream, and puree until very smooth. (katieatthekitchendoor.com)
You can use whatever hummus you like or have at home, then just adjust the consistency with a little bit of pasta water for a creamy sauce. (greenevi.com)
Add the pesto sauce to the pasta and toss well, using a little of the pasta water if needed. (reciperebuild.com)