Preheat oven to 450°F (230°C). Bring a large pot of salted water to a boil for the pasta.
In a mixing bowl, combine olive oil, salt, pepper, thyme, and red pepper flakes. Toss butternut squash, tomatoes, and onion in the mixture until evenly coated.
Spread the vegetables on a large baking sheet in a single layer. Roast for 20-30 minutes until soft and slightly browned.
Cook the pasta according to package instructions, reserving about 1/2 cup of pasta water before draining.
Transfer roasted vegetables to a blender, add reserved pasta water, and blend until smooth and creamy.
Pour the sauce over the cooked pasta and stir well to coat. Drizzle with olive oil and sprinkle with Parmesan cheese before serving.
Send me this recipe!
Just enter your email below and get it sent straight to your inbox!
Notes
Store leftovers in an airtight container in the refrigerator for up to 5 days. Freeze for up to 3 months.