Yes, you can reheat zucchini noodles, but it's best to do so gently to avoid overcooking them and making them mushy. If you've sautéed the zucchini noodles, you can reheat them in a pan over low heat, stirring occasionally until warmed through. If you haven't cooked them yet, you can blanch them quickly in boiling water for about 1-2 minutes or heat them in the microwave for a short time.