This is one of those dinners I make when I want something bright, saucy, and a little playful — without spending an hour in the kitchen. The flavors are pure Thai: ginger, lime, soy, and creamy peanut butter coating delicate strands of oven-roasted spaghetti squash. It feels indulgent but is mostly vegetables, which is the sweet spot for weeknight cooking.
I like how the squash shells double as serving bowls. They look finished on the table with very little fuss. You can keep it vegetarian, add tofu, or toss in cooked chicken for a heartier plate — the recipe includes all three options so everyone gets what they want.
Ingredient Rundown
- 2 small spaghetti squash (about 1 1/2 pounds each) — the base of the dish; roast until fork-tender for those spaghetti-like strands.
- 2 teaspoons olive oil — used to coat the cut squash for roasting or microwaving so the flesh caramelizes slightly and doesn’t dry out.
- 1/2 teaspoon kosher salt + more to taste — seasons the squash interior; hold additional salt until after tossing with the peanut sauce.
- 1/4 teaspoon freshly ground black pepper + more to taste — a little heat to lift the sweet squash and rich peanut sauce.
- 1 batch simple peanut sauce (recipe below) — the flavor star; creamy, tangy, and savory. Make it while the squash cooks.
- 1/2 cup roasted salted peanuts — texture and crunch; sprinkle on top just before serving.
- Lime wedges — for squeezing at the table; brightens and balances the peanut richness.
- 1/3 cup fresh cilantro leaves — herb finish that adds freshness and visual contrast.
- 2/3 cup creamy peanut butter — the central ingredient in the sauce; use good-quality creamy PB for the smoothest texture.
- 1/4 – 1/3 cup warm water — thins the peanut butter into a pourable sauce; start with 1/4 cup and add up to 1/3 cup as needed.
- 1 tablespoon minced fresh ginger (about 1 thumb-size piece) — bright, warming note in the sauce; mince fine so it blends smoothly.
- 1 medium clove garlic (minced) — savory backbone to the sauce; mince or grate for even distribution.
- 2 tablespoons fresh lime juice (from about 2 medium limes, depending on their juiciness) — acidity that cuts through the peanut butter and rounds the flavors.
- 2 tablespoons Tamari or soy sauce* — umami and salt; Tamari if you want gluten-free.
- 1/4 cup cooked cubed tofu (warmed if desired (I like this crispy tofu or this store-bought baked tofu[affiliate link])) — optional protein for a vegetarian version; warmed and tossed on top.
- 1/4 cup cooked cubed chicken (warmed if desired) — optional for meat-eaters; adds heft without changing the base sauce.
Thai Peanut Spaghetti Squash Boats: From Prep to Plate
- Preheat the oven to 375°F (190°C).
- Wash the outside of the 2 small spaghetti squash. Cut off the stem end, then cut each squash in half lengthwise. Scoop out and discard the seeds.
- Brush the cut sides of the squash halves with 2 teaspoons olive oil, then sprinkle the insides evenly with 1/2 teaspoon kosher salt and 1/4 teaspoon freshly ground black pepper.
- Arrange the squash halves cut-side down on a baking sheet and bake until fork-tender, 30–40 minutes. Remove from the oven and let cool for 2–3 minutes, until cool enough to handle but still warm.
- (Microwave alternative) After halving and scooping the squash, brush the cut sides with 2 teaspoons olive oil and season with 1/2 teaspoon kosher salt and 1/4 teaspoon black pepper. Place the halves cut-side down in a microwave-safe dish with about 1 inch of water. Microwave on high 10–12 minutes, until fork-tender. Let cool 2–3 minutes.
- While the squash cooks, make the peanut sauce: mince 1 tablespoon fresh ginger and 1 medium clove garlic. In a blender combine 2/3 cup creamy peanut butter, 1/4 cup warm water (start here), the minced ginger, the minced garlic, 2 tablespoons fresh lime juice, and 2 tablespoons Tamari or soy sauce. Blend until smooth, adding more warm water as needed up to a total of 1/3 cup to reach a pourable consistency.
- When the squash is cool enough to handle, use a fork to scrape the flesh from each half into a medium bowl, creating spaghetti-like strands. Keep the empty shells intact and set them upright on your serving plates or a platter.
- Pour the prepared peanut sauce over the warm squash strands and toss gently until the squash is evenly coated. Taste and add additional kosher salt and freshly ground black pepper to taste, if desired.
- Divide the peanut-sauced squash evenly between the two reserved shells.
- Top the squash boats with the 1/2 cup roasted salted peanuts (divided between the boats), 1/3 cup fresh cilantro leaves, and lime wedges for squeezing. If you like, top individual servings with the 1/4 cup cooked cubed tofu and/or the 1/4 cup cooked cubed chicken (warmed, if desired).
- Serve immediately. If you are not serving right away, warm the peanut sauce on the stove before mixing with the squash so the finished dish is hot when served.
Why It Works Every Time
Roasting the squash transforms the dry fibers into soft, noodle-like strands that hold sauce without collapsing. The light brush of oil and simple seasoning lets the squash’s subtle sweetness come through while the oven concentrates flavor. Warm squash absorbs the peanut sauce better than cold, which is why the instructions emphasize tossing while still warm.
The sauce is a concise balance of fat, acid, and salt: peanut butter for body, lime for brightness, and Tamari/soy for depth. Ginger and garlic add the aromatic lift that makes the dish unmistakably Thai-inspired. The peanuts and cilantro finish gives texture contrast and a fresh herbal note so each bite feels complete.
Substitutions by Category
- Squash: If spaghetti squash isn’t available, roasted butternut cubes work as a stand-in for a chunkier bowl-style dish.
- Nut butter: If someone has a peanut allergy, try tahini for a sesame-forward sauce; swap the water amount to reach the right pourable consistency.
- Salt/umami: Tamari or soy sauce can be swapped for coconut aminos for a sweeter, soy-free option.
- Proteins: Replace the cooked cubed chicken with shrimp or a can of flaked tuna for a quicker, different-style protein boost.
- Herbs & crunch: If you don’t like cilantro, use fresh basil or mint. Swap roasted peanuts for chopped cashews for a different texture and flavor.
Kitchen Gear Checklist
- Sharp chef’s knife (for halving the squash safely).
- Cutting board sturdy enough to handle the squash.
- Baking sheet (rimmed) or microwave-safe dish for the shortcut.
- Spoon or ice cream scoop to remove seeds cleanly.
- Blender for the peanut sauce (or a whisk and small bowl if you don’t have one).
- Forks for shredding the roasted squash into strands.
- Mixing bowl and serving plates to assemble the boats upright.
Watch Outs & How to Fix
- Squash is still hard after baking: Return to the oven for 5–10 minute increments, checking with a fork. Smaller squash will cook faster.
- Sauce too thick: Stir in warm water by teaspoons until pourable. The recipe notes 1/4–1/3 cup as your working range.
- Sauce too thin: Add a spoonful of peanut butter and blend again; heat helps the fat re-emulsify.
- Too salty: Add a squeeze of lime or a touch more peanut butter to balance; serve with unsalted peanuts to reduce overall salt.
- Squash strands soggy: Avoid overcooking the squash. If you end up with soggy strands, briefly spread them on a hot skillet to drive off excess moisture before tossing with sauce.
Seasonal Serving Ideas
Spring: Add thinly sliced radishes and a handful of pea shoots for peppery freshness. Lime wedges are essential in spring — they keep the plate bright.
Summer: Toss in grilled corn kernels and diced mango for sweet contrast. Serve the boats chilled or at room temperature for warm nights.
Fall/Winter: Top with roasted sweet potatoes or a drizzle of chili oil for warmth. Serve with a side of toasted flatbread or rice to round out the meal.
Pro Perspective
Use warm water when thinning the peanut butter — it helps the sauce emulsify smoothly without graininess. If you’re blending in a high-powered blender, scrape down the sides once or twice so the ginger and garlic distribute evenly.
When roasting, place the squash halves cut-side down on the pan. That simple orientation steams the interior slightly and yields a glossy, tender texture rather than dry flakes. And always taste the sauce before adding it to the squash; small adjustments with lime or soy make a big difference.
Make Ahead Like a Pro
Roast the squash up to 2 days ahead and store the halves (or the scraped strands) in an airtight container in the fridge. Keep the peanut sauce in its own container; it will keep 3–4 days chilled. Warm the sauce gently on the stove before tossing with squash so the strands absorb it and serve hot.
If you’re prepping proteins, cook and cube the tofu or chicken ahead and store separately. Assemble just before serving for best texture on the peanuts and cilantro.
Thai Peanut Spaghetti Squash Boats FAQs
- Can I freeze the prepared boats? Freeze the cooked squash strands (without the sauce) for up to 3 months. Thaw, warm, and then toss with freshly made peanut sauce for best texture.
- Can I make this nut-free? Use tahini or sunflower seed butter and swap peanuts for toasted seeds. Adjust lime and salt to taste.
- How can I make it spicier? Add crushed red pepper flakes to the sauce or a drizzle of chili oil when serving.
- Is the microwave method as good as oven roasting? The microwave is a great shortcut and cooks faster, but the oven adds a touch more caramelization and depth of flavor.
Ready, Set, Cook
This recipe is reliable, adaptable, and quick enough for a weeknight yet pretty enough for guests. Roast your squash, blend the sauce while it cooks, shred into strands, and toss. Top with peanuts, cilantro, and a wedge of lime — or add tofu or chicken for protein. It’s food that feels composed without a lot of effort.
Make the sauce a little ahead if you like, and you can have dinner on the table in under an hour. Enjoy — and don’t skip the lime squeeze at the end. It makes everything sing.
Simple Thai Peanut Spaghetti Squash Boats (3 Ways!)
Ingredients
Ingredients
- 2 small spaghetti squash about 1 1/2 pounds each
- 2 teaspoonsolive oil
- 1/2 teaspoonkosher salt + more to taste
- 1/4 teaspoonfreshly ground black pepper + more to taste
- 1 batch simple peanut sauce recipe below
- 1/2 cuproasted salted peanuts
- Lime wedges
- 1/3 cupfresh cilantro leaves
- 2/3 cupcreamy peanut butter
- 1/4 - 1/3 cupwarm water
- 1 tablespoonminced fresh ginger about 1 thumb-size piece
- 1 medium clove garlic minced
- 2 tablespoonsfresh lime juice from about 2 medium limes, depending on their juiciness
- 2 tablespoonsTamari or soy sauce*
- 1/4 cupcooked cubed tofu warmed if desired (I likethis crispy tofuor thisstore-bought baked tofu[affiliate link])
- 1/4 cupcooked cubed chicken warmed if desired
Instructions
Instructions
- Preheat the oven to 375°F (190°C).
- Wash the outside of the 2 small spaghetti squash. Cut off the stem end, then cut each squash in half lengthwise. Scoop out and discard the seeds.
- Brush the cut sides of the squash halves with 2 teaspoons olive oil, then sprinkle the insides evenly with 1/2 teaspoon kosher salt and 1/4 teaspoon freshly ground black pepper.
- Arrange the squash halves cut-side down on a baking sheet and bake until fork-tender, 30–40 minutes. Remove from the oven and let cool for 2–3 minutes, until cool enough to handle but still warm.
- (Microwave alternative) After halving and scooping the squash, brush the cut sides with 2 teaspoons olive oil and season with 1/2 teaspoon kosher salt and 1/4 teaspoon black pepper. Place the halves cut-side down in a microwave-safe dish with about 1 inch of water. Microwave on high 10–12 minutes, until fork-tender. Let cool 2–3 minutes.
- While the squash cooks, make the peanut sauce: mince 1 tablespoon fresh ginger and 1 medium clove garlic. In a blender combine 2/3 cup creamy peanut butter, 1/4 cup warm water (start here), the minced ginger, the minced garlic, 2 tablespoons fresh lime juice, and 2 tablespoons Tamari or soy sauce. Blend until smooth, adding more warm water as needed up to a total of 1/3 cup to reach a pourable consistency.
- When the squash is cool enough to handle, use a fork to scrape the flesh from each half into a medium bowl, creating spaghetti-like strands. Keep the empty shells intact and set them upright on your serving plates or a platter.
- Pour the prepared peanut sauce over the warm squash strands and toss gently until the squash is evenly coated. Taste and add additional kosher salt and freshly ground black pepper to taste, if desired.
- Divide the peanut-sauced squash evenly between the two reserved shells.
- Top the squash boats with the 1/2 cup roasted salted peanuts (divided between the boats), 1/3 cup fresh cilantro leaves, and lime wedges for squeezing. If you like, top individual servings with the 1/4 cup cooked cubed tofu and/or the 1/4 cup cooked cubed chicken (warmed, if desired).
- Serve immediately. If you are not serving right away, warm the peanut sauce on the stove before mixing with the squash so the finished dish is hot when served.
Equipment
- Oven
- Baking Sheet
- microwave-safe dish
- Blender
- Fork
- Medium Bowl
- Serving plates
Notes
Meat option:
Top with cooked, cubed chicken (warmed if you like).
* Soy sauce is not gluten-free, but Tamari is.
Weight Watchers Smart Points: 13 SP per serving (1/4 of recipe) - this is without any additional protein (chicken or tofu).
Nutrition information is for the version without any added tofu or chicken.
