*Sautée diced onion with olive oil on medium heat until translucent. This should only take about 5 minutes, but you can move on to steps 2 & 3 to optimize time.
Boil water for your pasta & add when it comes to a rolling boil
Microwave all of the butternut squash for 4-5 minutes (2 1/2 cups)**
Add the rest of the sauce ingredients to a blender while the squash is in the microwave and when it's ready add 2 cups of the butternut squash and the sautéed onion to the mixture. Blend until smooth.
When your pasta is ready remove from heat, strain and rinse. Add the pasta back to the pot with your desired amount of sauce. Let it warm up on medium to low heat while you prepare your toppings.
When your pasta is warm plate it and add toppings, including the leftover 1/2 cup of butternut squash.