It's versatile and simple ... you might look here
for instructions on the various ways to prepare it. You can dress it up any way you would regular "string" (spaghetti, angel hair, etc.) pasta. It's not always available - but when in season I usually do use it a few times.
StirBlue - spaghetti squash is just a varity of squash (a vegetable) that has the texture of spaghetti when cooked and "pulled/raked/whatever you want to call it" - zip (0) trans fat and lower in calories than dried pasta ... good sub for pasta for people on diets, diabetics and people with gluten allergies. As for trans fats in dried pasta ... I've never seen one that contained trans fats - most are made from just semolina flour and water ... some are "fortified" with vitamins ... and even egg noodles don't contain trans fats.