Poke the squash all over with a fork or paring knife and place the squash in the microwave for 3 to 5 minutes depending on size. This will soften the squash and make it easier to cut in half before baking.
Slice squash in half lengthwise and scoop out all of the pulp and seeds.
Place the two halves cut-side down in a lipped roasting pan. (Optional) Pour just enough water into the pan to cover the bottom.
Bake for 30 to 50 minutes depending on the size of the squash. A smaller squash will cook faster.
The squash is cooked once you can stick a fork through the skin.
Use a fork to scrape out the squash halves, the squash should have a stringy spaghetti look to it.
Toss with butter or olive oil and salt and pepper or even marinara sauce and garnish with parsley.