Preheat over to 350 degrees.
Cut spaghetti squash. Scoop out seeds. Drizzle with olive oil and add salt and pepper to taste.
Place cut side down in a baking dish with a little bit of water.
Bake 45 minutes to an hour.
Cool & remove squash from skin. Mix sauce with the squash and spread in a 13 x 9 baking dish.
Top with cheese and favorite toppings. Bake 10 minutes until toppings are hot and cheese is melted.