You can also make it in the microwave. Either split first, remove the seeds and stringy goop, and place face-down on a microwave-safe plate or just prick it with a fork and cook it. Time will depend on size, but cook it until it's nice and soft. Then just use a fork to scrape out the flesh. The flesh will automatically come out in strings.
You can also bake it whole -- which means that you'll have to scrape out the seeds after it's cooked. Again, make sure to prick it so that it doesn't split on its own.
One warning, though -- it will have a crispier texture than noodles. No matter how long you cook it, it still won't be as soft as pasta. But that texture is actually one of the attractions, for me. It's got a bit of a crunch, which is nice.