Squash is loaded with vitamins, minerals, antioxidants, and fiber. This explains all the rage over substituting spaghetti squash for pasta. There are several things to consider if you are planning to make a substitution. First, is that if you are cooking for children, remember not all kids like squash, even if it is shaped like noodles. Also remember that in order to make spaghetti squash, you need to roast the squash close to an hour, compared to cooking regular spaghetti for 8-10 minutes.