Spaghetti squash roasts up with tender, golden strands that pull apart like pasta - and at roughly 42 calories per cup, it gives you all the satisfaction of a noodle base without the heaviness.
The mild, slightly sweet flavor is what makes it so easy to pair with almost anything.
The challenge is not finding a side that works. It is choosing which one to make first.
Spaghetti squash holds up well next to bold sauces, sautéed greens, and briny spreads. Unlike delicata squash sides, which tend to lean sweeter, spaghetti squash welcomes savory, herb-forward pairings without competition.
We pulled together 12 sides that actually earn a place on the plate - from a 10-minute garlic butter toss to a charred grilled vegetable platter that works for weeknights and entertaining alike.
Spaghetti squash pairs best with bold, flavorful sides that contrast its mild sweetness. Top picks include tomato sauce, pesto, garlic butter, sautéed spinach, and roasted vegetables. Most of these sides take under 20 minutes and can be prepped ahead for weeknight meals.
12 Ideal Side Dishes for Spaghetti Squash
1. Tomato Sauce
Tomato sauce is the most natural pairing for spaghetti squash, and the reason is straightforward. The natural acidity of tomatoes cuts through the squash's mild sweetness, giving the whole dish a more balanced flavor profile.
A basic marinara takes about 20 minutes and needs only canned tomatoes, olive oil, and garlic. You can build from there by folding in ground beef or pork for protein, or adding mushrooms, peppers, and onions for a vegetable-forward version.
Spices do the real work here. A pinch of chili flakes and dried oregano transforms a plain tomato sauce into something with genuine depth.
Fresh basil stirred in at the end keeps it bright.
Adjust seasoning as you go and taste before serving - canned tomatoes vary significantly in sweetness and salt.
2. Pesto
Pesto originates from Genoa, Italy, and the traditional recipe calls for fresh basil, pine nuts, garlic, olive oil, and Parmesan - all ground together into a thick, vibrant green sauce. It takes about 5 minutes in a food processor.
The flavor is both savory and herby, with the Parmesan adding a salty, nutty edge that works exceptionally well with the squash's mild strands. Texture-wise, it coats each strand evenly without making the dish feel heavy.
Roasted cherry tomatoes added on top are a reliable upgrade - their sweetness balances the richness of the olive oil and cheese. You can also use leftover pesto as a sandwich spread or a quick dipping sauce for crusty bread served alongside.
Use room-temperature pesto, not cold from the fridge. Cold pesto clumps on warm squash strands instead of coating them evenly.
3. Roasted Red Peppers
Roasting transforms red peppers from crisp and mildly sweet to soft, smoky, and intensely flavored. That depth is exactly what spaghetti squash needs as a topping or a sauce base.
For the best results, roast peppers at 450°F for 25 to 30 minutes, turning once halfway through. The char on the skin adds flavor and peels off easily after they steam in a covered bowl for 10 minutes.
A few pairing ideas to get you started:
- Roasted red pepper sauce: Blend the peppers with garlic and olive oil, then toss directly with spaghetti squash strands.
- Pepper and chicken combo: Grilled chicken topped with a roasted red pepper salsa over a bed of spaghetti squash makes a complete meal.
- Quinoa salad add-in: Chop roasted peppers and toss with quinoa, feta, and olives for a side that holds up for days in the fridge.
4. Sautéed Spinach
Sautéed spinach is one of the fastest sides you can put together - 2 to 3 minutes in a hot pan with olive oil and garlic is all it takes. Fresh spinach wilts down dramatically, so plan on about 5 ounces per person.
The earthy, slightly bitter flavor of spinach offsets the sweetness of spaghetti squash in a way that feels intentional. Garlic added to the oil at the start infuses the whole dish before the spinach even hits the pan.
Finish with a squeeze of lemon and a handful of grated Parmesan just before serving. The salt and fat from the cheese pull the whole plate together.
If you want more fiber on the plate, this is one of the simplest ways to get there - spinach delivers about 4 grams of fiber per cooked cup, as noted in our high-fiber sides guide.
5. Garlic and Butter
Garlic and butter is the most stripped-back way to serve spaghetti squash, and it may be the best. Two tablespoons of butter and 3 cloves of fresh garlic is enough to coat a medium squash and let the vegetable's natural flavor come through.
Melt the butter over medium-low heat, add minced garlic, and cook for about 90 seconds until fragrant - not browned. Toss the squash strands directly in the pan so every strand gets coated.
Fresh garlic is non-negotiable here. Jarred minced garlic has a sharper, more acidic edge that clashes with the butter instead of blending with it.
A few shavings of Parmesan on top add a salty finish that rounds out the richness.
6. Olive Tapenade
Olive tapenade is a Provençal paste made from olives, capers, anchovies, and olive oil, and its briny intensity makes it a bold contrast to the mild sweetness of spaghetti squash. A little goes a long way - one to two tablespoons per serving is plenty.
The flavor is salty and deeply savory, with the capers adding a sharp tang that cuts through any richness on the plate. It spreads smoothly at room temperature and can also work as a condiment alongside roasted chicken or grilled fish if you are building a larger spread.
For ideas on how that kind of meal comes together, the roasted chicken sides roundup has strong options to pair alongside.
Fresh rosemary or thyme stirred into the tapenade before serving adds an herby brightness. Swapping in lemon-infused olive oil in place of regular olive oil lifts the whole spread and reduces some of the brininess.
7. Caramelized Onions
Caramelized onions require low heat and at least 35 to 40 minutes - rushing them produces bitter, unevenly cooked onions, not the sweet, jammy result you are after. Start with a wide pan, a tablespoon of butter, and sliced yellow onions.
As the natural sugars break down over low heat, the onions turn deep golden and develop a flavor that is far more complex than raw onion. That sweetness paired with the mild strands of spaghetti squash creates a combination that is genuinely satisfying.
A splash of balsamic vinegar added in the last 5 minutes adds just enough acidity to balance the sweetness. Fresh thyme or rosemary tossed in before serving gives the onions an herby lift.
For more ideas using Mediterranean herbs and vegetables, the garlic-herb veggie sides collection is worth bookmarking.
8. Mushrooms
Mushrooms add a savory, meaty quality to spaghetti squash that no other vegetable quite replicates. Shiitake and cremini mushrooms have deeper flavor than button mushrooms, though button mushrooms are a reliable starting point if that is what you have.
The key is to cook mushrooms in a hot, dry pan first - no oil - for about 3 minutes before adding fat. This allows moisture to evaporate and gives the mushrooms a browned, slightly chewy texture instead of a steamed one.
A few tips for getting the most out of mushrooms alongside spaghetti squash:
- Sauté in olive oil after browning: Add 1 tablespoon of olive oil once the pan moisture is gone, then cook another 2 minutes to develop color and flavor.
- Add garlic toward the end: Garlic added too early burns; stir it in during the last 60 seconds of cooking for a clean, aromatic finish.
- Try oyster mushrooms for texture variety: They are thin and silky when cooked, offering a different mouthfeel compared to the denser cremini.
9. Arugula and Parmesan Salad
Arugula has a distinct peppery bitterness that contrasts sharply with the sweetness of spaghetti squash, making it one of the most interesting greens to serve alongside. Shaved Parmesan adds a salty, nutty note that ties the two elements together.
A simple lemon and olive oil dressing - two tablespoons of lemon juice, three tablespoons of olive oil, salt, and pepper - is all this salad needs. Cherry tomatoes add a burst of acidity and color without complicating the flavor.
This salad is highly adaptable. Spinach or kale works in place of arugula for a milder flavor, and feta or goat cheese can substitute for Parmesan.
To make it a full meal, grilled chicken or shrimp on top adds protein without changing the character of the salad. If you want ideas on how to round out a more substantial dinner with complementary sides, the beef tenderloin sides roundup offers useful pairings for elegant, produce-forward plates.
10. Caprese Salad
Caprese salad is three ingredients - ripe tomatoes, fresh mozzarella, and basil - and its simplicity is exactly what makes it work so well next to spaghetti squash. The fresh, clean flavors do not compete with whatever sauce you have on the squash.
The creamy mozzarella provides a silky texture that contrasts nicely with the tender squash strands, while the tomatoes add brightness and acidity to the plate. A drizzle of good olive oil and flaky salt is the only finishing touch the salad needs.
Heirloom tomatoes in season are the single best upgrade for this dish - their sweetness and complexity far outpace standard greenhouse tomatoes. Bocconcini, the smaller mozzarella balls, are another option if you want a more composed, bite-sized presentation.
Grilled tomatoes instead of fresh add a smoky depth that pairs especially well when the squash itself is roasted at high heat. If you are thinking about how spaghetti squash stacks up against traditional pasta nights, the best sides for spaghetti carbonara comparison makes for useful reading.
11. Grilled Vegetables
Grilled vegetables add charred, smoky flavor that spaghetti squash on its own cannot provide. Zucchini, eggplant, and bell peppers are the most reliable choices - they hold their shape on the grill and develop good color fast.
Getting the technique right matters. Cut vegetables into uniform pieces so they cook evenly, and do not skip oiling and seasoning them before they hit the grates.
A grill preheated to medium heat - around 375°F - prevents burning while still achieving those golden grill marks. If you want vegetables with similar results but without firing up a grill, the air fryer veggie sides roundup shows how to replicate that texture indoors.
- Choose your vegetables: Zucchini, eggplant, peppers, mushrooms, and tomatoes all hold up well over direct heat.
- Cut for even cooking: Uniform slices - about ½ inch thick - ensure everything is done at the same time.
- Oil and season before grilling: Toss in olive oil, salt, and pepper before they go on the grill, not after.
- Preheat the grill fully: A cold grill causes vegetables to steam rather than char.
- Cook over medium heat: High heat chars the outside before the inside softens.
- Pull when tender and golden: Remove when just soft with visible browning - they will continue cooking slightly off the heat.
- Serve with a sauce: A yogurt dip, romesco, or simple vinaigrette rounds out the plate.
12. Breadsticks or Garlic Bread
Breadsticks and garlic bread bring something textural that the rest of this list does not - a crispy, chewy crunch that contrasts with the soft squash strands. That contrast is what makes the combination feel satisfying rather than one-note.
The flavor overlap is also real. Both garlic bread and spaghetti squash lean savory and slightly sweet, which means they support each other rather than fighting for dominance.
The best part is using the bread to scoop up any remaining sauce on the plate.
Flavored breadsticks - Parmesan, rosemary, or garlic herb - add more interest than plain ones. For sauces, a spicy marinara or creamy Alfredo both work well for dipping.
If you like the idea of a rice-based side for soaking up sauce instead, the quick takeout-style fried rice is another satisfying option that comes together in about 15 minutes.
Store-bought garlic bread takes 10 minutes in a 375°F oven straight from frozen. It is the fastest way to add a crunchy element to the plate on a weeknight.
12 Sides That Pair Well with Spaghetti Squash
Every side on this list brings something different to the table - acidity from tomatoes, richness from garlic butter, crunch from breadsticks, or that deep savory note from mushrooms and caramelized onions. Spaghetti squash is mild enough to work with all of them.
The right pairing depends on what you already have and how much time you want to spend. A quick weeknight dinner calls for garlic butter or sautéed spinach.
A dinner party deserves a caprese salad or grilled vegetable platter. If you want to store spaghetti squash and prep sides in advance, most of these - tapenade, roasted peppers, caramelized onions - keep well for several days.
For more inspiration on building a complete vegetable-forward spread, the crowd-pleasing side dish combinations roundup is worth a look.
Carrie is a food writer and editor with more than 15 years of experience. She has worked for some of the biggest names in the food industry, including Bon Appétit, Food & Wine, and Martha Stewart Living.
As the Editor in Chief of EpicureDelight, Carrie oversees all of the content on the site. She also manages the team of contributing writers and editors, who help to create delicious recipes, helpful tips, and informative articles that you’ll find on the site.
A native of the Chicago area, Carrie is passionate about all things food. She loves trying new restaurants and experimenting with new recipes in her kitchen. She’s also a graduate of the Culinary Institute of America, so she knows a thing or two about food!
