Just get in there and cut it in half (lengthwise) or quarters. You don’t want to cut it up too small unless you want short strands. Scrape out the seeds and pulp as you would with any squash or pumpkin.
While Spaghetti Squash is cooking add 2 teaspoons of olive oil and minced garlic to medium heat skillet. Add 1/2c of chopped onions to pan as well. Next add ground turkey and add Italian Seasoning. Cook turkey until fully browned. Turn down heat and add lite pasta sauce. At this time take a fork to cook