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Spaghetti Squash Stir-Fry

Chili garlic sauce and lime wedges beside a bowl of tofu and spaghetti squash stir-fry

If you’re looking for a new way to enjoy spaghetti squash, this is it! It’s a hearty, flavorful, plant-based stir-fry with spaghetti squash noodles, crispy baked tofu, and tons of colorful veggies. It requires just 10 simple ingredients and is perfect for fall and beyond. Let us show you how it’s done!

Spaghetti squash, red bell pepper, green onion, mushrooms, lime, ginger, garlic, cubed tofu, nut butter, coconut aminos, maple syrup, and toasted sesame oil

Origins of Stir-Fry

Stir frying is a cooking method believed to have originated in China. Traditionally, stir-fries are cooked in a wok with a small amount of hot oil and continuously stirred. But since we don’t have a wok (and chances are you don’t either), we used a skillet for this recipe. You can take a deeper dive into the history of stir frying here.

How to Make Spaghetti Squash Stir-Fry

This stir-fry starts with the protein (a.k.a. the most delicious and snack-able tofu you ever will try!). Cubed tofu is tossed in toasted sesame oil and coconut aminos (or tamari), then baked until golden brown and crispy!

Crispy baked tofu cubes on a baking sheet

The next best part of this recipe (or can we call it a tie?) is the sauce! Creamy peanut butter (or your favorite nut or seed butter) mixes with coconut aminos (or tamari), maple syrup, and lime juice for a savory-sweet sauce. Optional chili garlic sauce gives it a kick of heat.

Stirring a bowl of peanut butter, coconut aminos, maple syrup, lime juice, and chili garlic sauce

Next up we sauté the veggies and aromatics! We went with shiitake mushrooms, red bell pepper, garlic, ginger, and green onions. But when it comes to the veggies, this recipe is flexible — use what you have around. Other mushrooms, cabbage, or finely chopped broccoli or cauliflower would all be delicious options!

Adding sliced green onion into a skillet of sautéed veggies

The main veggie in this recipe is one of our fall favorites: spaghetti squash! This recipe works well with leftover squash, but if you don’t have any around, make it in the Instant Pot (for speedy preparation) or oven (for extra caramelization). And if you’re new to this veggie, keep reading for our Spaghetti Squash 101 tips!

Pan of sautéed veggies and baked tofu

When the veggies, tofu, sauce, and (pre-cooked) spaghetti squash are ready, the finish line is near! Mix it all together until warmed, and this stir-fry is ready to serve with your favorite toppings (lime wedges, extra green onions, cilantro, and chopped peanuts are our faves!).

Pouring peanut sauce over spaghetti squash, tofu, and veggies

Spaghetti Squash FAQs

So you’re new to spaghetti squash and not sure what to do with this giant, rock-hard vegetable people say is like spaghetti? We’ve got you! We’ve compiled the top questions from spaghetti squash newbies and our best answers to get you enjoying this nutrient-rich veggie in no time!

How to Cut Spaghetti Squash

Carefully halve the squash lengthwise using a sharp knife. The best way to do this is by inserting the very tip of a very sharp large knife into the side of the squash (lengthwise). Then push it all the way through to the other side and rock the knife back and forth to cut one half all the way through. Repeat on the other side.

How to Cook Spaghetti Squash

Our favorite way to cook a spaghetti squash is to cut it in half lengthwise, scoop out the seeds and stringy parts, then cook it in the oven (for best flavor) or Instant Pot (if in a hurry or using it in a flavor-packed recipe).

How Long Does Spaghetti Squash Last?

Stored in a cool dry place (such as a shady spot on the kitchen counter), spaghetti squash will last for at least a few weeks and up to a few months. Once cut or cooked, store it in a sealed container in the refrigerator where it will keep for closer to 3-4 days.

What Does Spaghetti Squash Taste Like?

Spaghetti squash has a mild, slightly sweet flavor, making it perfect for pairing with flavorful sauces like marinara, pesto, or the stir-fry sauce below!

Stirring a pan of spaghetti squash stir fry with bell peppers and mushrooms

We hope you LOVE this spaghetti squash stir-fry! It’s:

& Perfect for fall and winter!

It’s great for meal prep or as a weeknight-friendly entrée if using leftover squash or preparing the sauce in advance. The tofu is optional if enjoying as a side, or you can swap in your favorite protein if enjoying as a main.

More Spaghetti Squash Recipes

If you try this recipe, let us know! Leave a comment, rate it, and don’t forget to tag a photo #minimalistbaker on Instagram. Cheers, friends!

Chopsticks holding a bite of spaghetti squash stir-fry

Prep Time 20 minutes

Cook Time 40 minutes

Total Time 1 hour

Servings 3 (Servings)

Course Entree, Side

Cuisine Chinese-Inspired, Gluten-Free, Grain-Free, Vegan

Freezer Friendly No

Does it keep? 2-3 Days

TOFU optional

  • 1 (14-ounce) block extra firm tofu
  • 1 Tbsp toasted sesame oil (or sub avocado oil)
  • 1 Tbsp coconut aminos (or tamari)


  • 3 cups cooked spaghetti squash* (~1 small (2 lb) or 1/2 large (5 lb))
  • 1 Tbsp toasted sesame oil (or sub avocado oil)
  • 3 cups sliced shiitake mushrooms (~8 ounces)
  • 1 medium red bell pepper, diced
  • 2 large cloves garlic, minced
  • 1 Tbsp freshly minced ginger
  • 4 stalks green onions, thinly sliced (optional)

FOR SERVING optional

  • Lime wedges
  • Thinly sliced green onion
  • Freshly chopped cilantro
  • Chopped peanuts
  • TOFU (optional): Preheat the oven to 400 degrees F (204 C) and line a baking sheet with parchment paper. Drain liquid from the tofu and wrap the block of tofu in a clean dish towel to dry it out a bit. Then cut into 1/2-inch cubes and place on the parchment-lined baking sheet. Add toasted sesame oil and coconut aminos and toss to coat. Spread into an even layer and bake for 25-30 minutes, flipping halfway through, or until golden brown with crispy edges. Set aside.

  • SPAGHETTI SQUASH: If you don’t already have leftover cooked spaghetti squash, prepare at this time in either the Instant Pot or oven. The Instant Pot is our preferred method when short on time and the oven is preferred for superior flavor. Shred with a fork and set aside.
  • SAUCE: Prepare sauce by adding all ingredients (peanut butter, coconut aminos or tamari, maple syrup, lime juice, and chili garlic sauce (optional)) to a small mixing bowl and whisking to combine. Taste and adjust flavor as needed, adding more chili garlic sauce for heat, lime juice for acidity, maple syrup for sweetness, peanut butter to thicken, or coconut aminos for saltiness and depth of flavor. Set aside.

  • STIR-FRY: Heat a large skillet over medium-high heat. Once hot, add sesame oil, mushrooms, and bell pepper. Cook, stirring occasionally, for 4-6 minutes or until tender. Reduce heat to medium if browning too quickly. Add garlic, ginger, and green onion (optional) and cook for 1 minute or until fragrant. Add tofu, 3 cups cooked spaghetti squash (adjust amount if altering number of servings), and sauce, and stir to coat evenly with sauce. Cook for 2 minutes or until warmed.

  • GARNISH: Optionally, garnish with lime wedges, sliced green onion, cilantro, and chopped peanuts. Add sriracha or chili garlic sauce for a little more heat.

  • Best when fresh. Leftovers will keep covered in the refrigerator for up to 2-3 days. Reheat in the microwave or in a skillet over medium heat until warmed. Not freezer friendly.

*Leftover spaghetti squash works well in this recipe. It does not need to be made the day of.
*Adapted from our 20-Minute Tofu Stir-Fry and Easy Vegan Fried Rice.
*Find more ideas on how to use leftover spaghetti squash here!
*Nutrition information is a rough estimate calculated without optional ingredients.

Serving: 1 serving Calories: 213 Carbohydrates: 27.4 g Protein: 5.6 g Fat: 11 g Saturated Fat: 2 g Polyunsaturated Fat: 3.6 g Monounsaturated Fat: 4.7 g Trans Fat: 0 g Cholesterol: 0 mg Sodium: 219 mg Potassium: 606 mg Fiber: 5.4 g Sugar: 14.5 g Vitamin A: 1415 IU Vitamin C: 58.8 mg Calcium: 53.3 mg Iron: 1.2 mg


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