This is a roasted spaghetti squash salad tossed with cherry tomatoes, fresh basil, shredded parmesan, and a lemon-parmesan dressing made with olive oil, Dijon mustard, and honey. It comes together in about 55 minutes and works as a light main or a side that actually fills you up. The squash gives you the bulk of a grain salad without the heaviness.
Why this recipe works
Two things make this salad succeed. First, roasting the squash cut-side down at 400ยฐF lets the flat surface caramelize directly against the pan, which draws out moisture and concentrates the squashโs natural sweetness โ steaming it or microwaving it wonโt get you there. Second, the dressing uses both lemon juice and lemon zest together. The juice adds brightness, but the zest carries the aromatic oils that actually cling to the squash strands and stay with every bite. Dijon mustard acts as an emulsifier, so the olive oil and lemon donโt separate before the dressing hits the bowl.
Common problems and fixes
- Watery salad after tossing: Spaghetti squash holds a lot of water inside its strands. After scraping, spread the strands on a clean kitchen towel or a few layers of paper towel and press gently before transferring to the bowl. Even two minutes of draining makes a real difference.
- Dressing pools at the bottom: Dress it at the table โ a pre-dressed salad goes limp fast. If youโre serving it warm, toss immediately before eating so the dressing absorbs evenly rather than sinking.
- Squash strands clump together: This happens when the squash cools completely before you scrape it. Work while itโs still warm โ the strands separate cleanly and stay loose.
- Parmesan clumping instead of coating: Add the grated parmesan to the dressing before pouring it over the squash, not directly onto the salad. It disperses much more evenly that way.
- Bland overall flavor: Taste the squash strands on their own before dressing. If theyโre flat, add a small pinch of salt directly to the strands first. The dressing alone canโt rescue under-seasoned squash.
Ingredient notes
- Spaghetti squash (2ยฝโ3 lbs): Size matters here. A squash under 2 lbs will yield thin, sparse strands that get lost in the dressing. Look for one that feels heavy for its size with no soft spots.
- Parmesan (two uses): The recipe calls for grated parmesan in the dressing and shredded parmesan on the salad โ these arenโt interchangeable. Finely grated melts into the dressing; shredded gives you visible, chewy bits on top. Pre-grated shelf-stable parmesan wonโt emulsify well in the dressing; use fresh.
- Dijon mustard: Donโt skip it or swap in yellow mustard. Itโs doing structural work in the dressing, not just adding flavor.
- Swap for vegan: Replace both parmesan quantities with nutritional yeast (use about 2 tablespoons per ยผ cup parmesan) and swap the honey for maple syrup. The dressing will be slightly thinner but still coats well.
Keeping leftovers crisp
Store undressed squash strands and the dressing separately in airtight containers in the refrigerator โ the squash keeps well for up to 3 days, and the dressing for up to 5. Cherry tomatoes and basil are best added fresh each time you serve, since tomatoes turn mealy when refrigerated and basil blackens quickly once cut. If youโve already tossed everything together, eat it within 24 hours; the squash absorbs the dressing overnight and the texture softens considerably. To refresh leftovers, drain off any pooled liquid, add a small squeeze of fresh lemon juice, and toss with a few fresh basil leaves before serving.
Spaghetti Squash Salad with Lemon-Parmesan Dressing
Equipment
- Chef's Knife
- Cutting board
- Baking sheet
- Parchment paper
- Fork
- Mixing bowl
- Whisk
- Small saucepan
Ingredients
For the Salad
- 1 medium spaghetti squash about 2 ยฝ to 3 lbs
- 2 tbsp olive oil extra virgin
- 1 tsp sea salt
- ยฝ tsp black pepper freshly ground
- ยฝ cup cherry tomatoes halved
- ยผ cup fresh basil chopped
- ยผ cup parmesan cheese shredded
For the Lemon-Parmesan Dressing
- 3 tbsp olive oil
- 1 tbsp lemon juice freshly squeezed
- 1 tsp lemon zest
- ยฝ tsp Dijon mustard
- 1 tsp honey
- 1 clove garlic minced
- ยผ tsp black pepper
- ยผ cup parmesan cheese grated
Instructions
- Preheat the oven to 400ยฐF (200ยฐC). Line a baking sheet with parchment paper.
- Cut the spaghetti squash in half lengthwise and scoop out the seeds. Drizzle with 1 tablespoon of olive oil, sprinkle with salt and pepper, and place cut-side down on the baking sheet.
- Roast for 40 minutes, or until the flesh is tender and can be easily shredded with a fork.
- Let cool for 5 minutes, then use a fork to scrape the flesh into thin strands. Transfer to a mixing bowl.
- In a small bowl, whisk together the olive oil, lemon juice, lemon zest, Dijon mustard, honey, minced garlic, and black pepper to make the dressing.
- Pour the dressing over the spaghetti squash, toss gently to combine.
- Add cherry tomatoes, fresh basil, and shredded parmesan cheese. Mix well.
- Serve immediately or let sit for 10 minutes to allow flavors to meld. Garnish with extra parmesan and basil before serving.
Notes
- For extra texture, try adding toasted pine nuts or slivered almonds.
- To make it vegan, swap parmesan for nutritional yeast and use maple syrup instead of honey.
Nutrition
FAQ
Can I make this a full meal instead of a side?
Yes โ add a protein directly to the bowl. Grilled chicken, sautรฉed shrimp, or canned white beans all work without changing the dressing or prep. Aim for about 4โ5 oz of protein per serving to make it genuinely filling.
Can I roast the squash ahead of time?
Yes, roast and scrape the squash up to 2 days ahead and refrigerate the strands in an airtight container. Let them come to room temperature for about 15 minutes before dressing, or the cold strands will seize up and wonโt absorb the dressing properly.
How do I know when the squash is done roasting?
Pierce the skin with a fork โ it should go in with almost no resistance. If you flip a half and the flesh looks glassy or wet rather than lightly golden, give it another 5 minutes.
Is this salad good cold, or does it need to be served warm?
It works at room temperature better than fully cold. Cold squash strands get dense and the dressing doesnโt distribute as well. If youโre pulling it from the fridge, let it sit out for 10โ15 minutes first.
Can I double the recipe for a group?
Easily โ use two squashes and roast them on separate baking sheets so theyโre not crowded. Keep the dressing recipe doubled but taste before adding all of it, since a larger squash yield can vary and you may not need every drop.