spaghetti squash
A winter squash whose cooked flesh separates into long, spaghetti-like strands when scraped with a fork, used as a lower-carb stand-in for pasta. Unlike other winter squashes, it doesn't puree or mash well -- its stringy structure is what makes it useful.
Buying guidance
Choose one that feels heavy for its size with a hard, matte, pale-yellow rind and no soft spots -- a shiny or greenish rind usually means it isn't fully ripe and won't separate into clean strands.
Substitutions
- Zucchini noodles, spiralized -- a different texture, soft rather than stringy, but a similar lower-carb pasta stand-in.
- Regular pasta -- loses the lower-carb angle entirely but is the closest match in eating experience where that's not a concern.
Tips & common mistakes
Spaghetti squash goes from distinct strands to mush faster than most winter squash, so check it a few minutes before it seems ready and stop as soon as a fork pulls the flesh into strands. The cooked strands also hold a surprising amount of water; letting them sit in a colander for a few minutes, or patting them with a towel, keeps a sauce from turning watery.
Storage
A whole, uncut spaghetti squash keeps for a month or more in a cool, dry spot, much like other winter squash. Once it's cut open, its high water content makes it perishable far faster -- wrap the halves tightly and refrigerate, using them within about a week; cooked strands hold up in the fridge for a few days but turn watery and limp if frozen.