Preheat your oven to 400° F.
Microwave whole spaghetti squash for 2 minutes to soften it enough to cut through.
Place spaghetti squash on a non-slip cutting board and slice off the stem and bottom ends, to create two flat surfaces. Then carefully, slice the spaghetti squash in half, lengthwise.
Scoop out the seeds and discard, or clean, roast, and salt for a snack.
Transfer your spaghetti squash halves to a lined baking sheet and drizzle with olive oil, salt, and pepper.
Flip your squash so it roasts skin side up. Rub any excess oil from the pan, or that fell down the sides of the squash on the skin of the squash.
Roast for 20-25 minutes, or until edges start to look golden, and you can easily pierce the flesh with a fork.
Wait for squash to cool before flipping the squash back over and using a fork to flake away the "spaghetti" strands.
Top as you please, or eat as is. Enjoy!