If you are looking for a healthy substitute to spaghetti noodles, look at using spaghetti squash. When it is cooked it separates into long strands which look just like your traditional spaghetti noodles. Just top it with some marinara or spaghetti sauce and you have a perfect meal.
To cook spaghetti squash, cut it in half lengthwise, and scoop out the seeds. Put the two halves on a baking sheet and bake at 350F for about an hour. The insides should be tender at this point. Remove them from the oven and let them cool for about 10 minutes. Using a fork, crape out the flesh. You will want to just scrape a bit at a time as it will separate into spaghetti-like strands. Plate it up and top with your favorite sauce for a healthier spaghetti dinner.