An American native vegetable, spaghetti squash gets its name from the way its flesh falls away in ribbons or strands when cooked. Slightly sweet and (if it's not overcooked) crunchy and watery like cucumber. Spagetti squash is a winter squash that helps provide you with an excellent source of carotenes; vitamins B1, B6 and C; folic acid; pantothenic acid; fiber; niacin; and potassium. Yellow squash can help protect you against type 2 diabetes, lung cancer, and heart disease.