How do you store cooked spaghetti over night?

To store cooked spaghetti overnight, first let it cool to room temperature. Then, place it in an airtight container or a resealable plastic bag, making sure to remove as much air as possible. If you want to prevent sticking, you can toss the spaghetti with a little olive oil before sealing. Refrigerate it, and it should stay fresh for up to three to four days.