Preheat the oven to 400 degrees F.
Slice the squash in half, then remove the seeds and pulp.
Coat the insides with olive oil, sprinkle with salt and pepper, and turn them flat side down onto a baking pan.
Bake in the oven for 25 to 30 minutes, until the tops are browning.
Comb out the noodles with a fork in a downward motion.
Toss with marinara sauce.