When the spaghetti squash is done, remove the pan from the oven and let cool for 10 to 20 minutes. Then, with a fork, gently remove the seeds from the central cavity and put in the compost. Then scrape the fork along the flesh of the spaghetti squash--it will come out in strings. Put this into your pan with the onion, garlic and herbs. Once you've scraped all the spaghetti squash out and into the onion, garlic, herb mix, then place the pan back on the burner and put the heat on medium. Stir and toss the mixture until is well mixed--about 5 to 8 minutes and heated all the way through.