While the acorn squash bakes, begin to gather your ingredients for the roux next and place a pot of salted water on the stovetop over medium heat, brining to a boil in preparation to make the fusilli.
In a large, deep saucepan add 2 tablespoon of butter + 1 cup non-dairy milk + ¼ broth. Bring to a simmer, stirring to help melt the butter and combine.
Once the butter is fully melted, add gluten free 1:1 flour, one tablespoon at a time, whisking vigorously to combine.
Mixture will begin to thicken. Continue to whisk, smoothing out any clumps of flour that may remain.
Next, add in cream cheese + shredded cheese, continuing to whisk until smooth. Once cheese is fully incorporated, add in spices and whisk some more ensuring there are no clumps.
While cheesey roux is just about finished, your pasta water should be at a rolling boil by now. Add entire box of Cassava Kitchen Gluten Free Fusilli pasta and allow to boil for 7-9 minutes; 7 will be a little more al dente, 9 will be more tender.
Continuing whisking cheese over low heat to keep it from solidifying while pasta boils.
As soon as pasta is ready, transfer it over into the cheese mixture using a slotted spoon. Do not drain pasta first; you'll want a bit of the pasta water to transfer into the cheese mixture to thin it out just a bit. Fold fusilli into cheese mixture with a slotted spoon.