1. First, get a sharp knife. Use it to pierce the spaghetti squash in a few locations.
2. Cook the squash for 5 minutes in the microwave.
3. Turn it over and microwave for another 5 minutes, or until it’s soft to the touch. For larger squash, try 6 minutes per side.
4. Allow 5 minutes for the squash to finish cooking.
5. Cut the squash in half lengthwise with a sharp knife. Allow for a brief cooling period of 2-3 minutes, or until it is easier to handle.
6. Scoop out the pulp and seeds from the middle, then scrape the flesh with a fork to separate strands onto a serving bowl.
7. Serve with a sprinkling of butter, salt, pepper, or your favorite sauce.

You can watch this video recipe to know how to cook spaghetti squash in the microwave.