Instant Pot Vegan Spaghetti Squash with Pesto Recipe
Spaghetti squash has surged in popularity as a delicious and nutritious alternative to traditional pasta. With its unique texture and ability to absorb flavors, this versatile vegetable offers a satisfying base for a variety of dishes, appealing to both health-conscious eaters and pasta lovers alike. As a low-calorie, low-carbohydrate option, spaghetti squash is not only a great choice for those following a gluten-free or low-carb diet but also an excellent vehicle for introducing creativity into meals.
In today’s fast-paced world, the Instant Pot has become a beloved kitchen appliance for home cooks looking to save time without sacrificing flavor. With its ability to pressure cook, sauté, and slow cook, the Instant Pot makes preparing meals quick and efficient. Whether you’re a busy professional, a parent juggling multiple activities, or just someone who appreciates a good meal in less time, the Instant Pot is a game-changer in the culinary landscape.
This recipe for Instant Pot Vegan Spaghetti Squash with Pesto combines the goodness of spaghetti squash with the fresh, vibrant flavors of homemade vegan pesto. By substituting traditional pesto ingredients with plant-based alternatives, this dish caters to vegans and those looking to reduce their dairy intake while still enjoying a rich and delightful flavor profile. With the Instant Pot, you can have a wholesome, mouthwatering meal ready in mere minutes, making it a perfect choice for busy weeknights or leisurely weekend dinners alike.

Benefits of Spaghetti Squash
Spaghetti squash is not just a trendy vegetable; it’s a powerhouse of nutrition that has garnered attention from health enthusiasts and food lovers alike. This unique squash is low in calories while being packed with essential vitamins, making it a fantastic addition to a balanced diet. For instance, it is an excellent source of beta-carotene, a precursor to vitamin A, which is crucial for maintaining healthy vision and skin. Additionally, spaghetti squash is rich in vitamin C, supporting the immune system and promoting healthy skin.
One of the standout features of spaghetti squash is its low carbohydrate count. This makes it a favorite for those looking to reduce their carbohydrate intake, especially for individuals following gluten-free or low-carb diets. When cooked, the flesh of the squash separates into long strands that resemble traditional pasta, offering a satisfying alternative without the added carbs.
Moreover, spaghetti squash showcases incredible culinary versatility. It can be seamlessly incorporated into a variety of dishes, ranging from salads and mains to casseroles. Whether you’re tossing it with a flavorful sauce, serving it alongside grilled vegetables, or even using it as a base for hearty baked dishes, spaghetti squash adapts beautifully, allowing for creativity in the kitchen.
Why Use an Instant Pot?
The Instant Pot has taken the culinary world by storm, becoming an indispensable tool for many home cooks. Its ability to significantly reduce cooking time compared to traditional methods is one of its most appealing features. When it comes to spaghetti squash, the Instant Pot excels at providing an effortless cooking experience. Pressure cooking not only cooks the squash quickly, typically in just a few minutes, but also ensures it is tender and cooked evenly, avoiding the risk of overcooked or mushy results.
In addition to speed, the Instant Pot boasts a range of functionalities, including sautéing, steaming, and slow cooking. This multifaceted appliance allows you to prepare entire meals with minimal hassle, streamlining the cooking process. The energy efficiency of the Instant Pot is another added bonus, using less energy compared to conventional ovens and stovetops, making it an eco-friendly choice for meal preparation.
Cleanup post-cooking is also a breeze with the Instant Pot. Most models come with removable inner pots that are dishwasher safe, making it easy to maintain cleanliness in the kitchen. This time-saving kitchen marvel is perfect for those busy weeknights when a nutritious, home-cooked meal is still desired without the lengthy preparation and cooking times.

Vegan Pesto: A Quick Guide
Pesto is a beloved sauce that traditionally features fresh basil, garlic, parmesan cheese, and pine nuts blended together with olive oil. The vibrant green sauce is not only rich in flavor but also versatile, making it a great addition to various dishes. However, traditional pesto contains dairy, which can be less appealing for those following a vegan diet. Fortunately, creating a delightful vegan pesto is easy with a few simple substitutions!
Ingredients Overview
To make a vegan version of pesto, you can replace the parmesan cheese with nutritional yeast, which adds a cheesy flavor without any dairy. Here’s a quick run-down of the essential ingredients for vegan pesto:
- Fresh herbs: Basil is a classic choice, but you can also experiment with spinach or parsley for a different flavor profile.
- Nuts: Traditional pine nuts can be swapped out with walnuts, almonds, or sunflower seeds, depending on your preference.
- Olive oil: A high-quality extra virgin olive oil adds richness and helps with emulsification.
- Garlic: Fresh garlic cloves impart a robust flavor that balances the herbs and oil.
Variations of Pesto
One of the joys of making pesto is the room for creativity. You can easily modify the basic recipe to suit your taste or dietary needs. Here are some tasty variations to consider:
- For a more nutrient-packed pesto, add a handful of spinach or kale to the mix.
- If you prefer a fruitier flavor, consider adding sun-dried tomatoes or roasted red peppers.
- Experiment with different nuts: try using cashews for a creamier texture, or poppy seeds for a unique twist.
- Swap out the herbs and use arugula or cilantro for a different flavor dimension.
Recipe: Instant Pot Vegan Spaghetti Squash with Pesto
Ingredients
- 1 medium spaghetti squash
- 2 cups fresh basil
- 1/2 cup nutritional yeast
- 1/3 cup raw nuts (pine nuts or walnuts)
- 2-3 garlic cloves
- 1/2 cup olive oil
- Salt and pepper, to taste
- Optional: cherry tomatoes (for freshness)
Directions
- Preparing the Spaghetti Squash: Cut the squash in half lengthwise, scoop out the seeds, and lightly season the inside with salt and pepper.
- Make Vegan Pesto: In a food processor, combine the basil, nutritional yeast, nuts, and garlic. Blend while slowly adding in the olive oil until smooth. Adjust seasoning as desired.
- Cook in Instant Pot: Place the squash halves on the trivet inside the Instant Pot. Add 1 cup of water to the bottom of the pot. Secure the lid and cook on high pressure for 7 minutes with a quick release.
- Combine and Serve: Once the spaghetti squash is cooked, use a fork to scrape out the strands. Toss the strands with the prepared vegan pesto and top with optional cherry tomatoes for a pop of color and freshness.
Advice
Here are some tips for making your spaghetti squash experience smooth and enjoyable:
- When cutting the squash, place it on a sturdy cutting board and use a sharp knife to prevent slipping.
- Store any leftover vegan pesto in an airtight container in the refrigerator for up to one week, or freeze it in ice cube trays for easy portioning.
- To elevate your dish, garnish with fresh herbs, a sprinkle of nutritional yeast, or a twist of lemon zest just before serving.
Pairing Suggestions
Complementary Dishes
This Instant Pot Vegan Spaghetti Squash with Pesto pairs beautifully with various side dishes. Here are a few suggestions:
- Side Salads: A fresh arugula or spinach salad drizzled with balsamic vinaigrette complements the richness of the pesto.
- Suggested Accompaniments: Serve with warm garlic bread or a protein source such as grilled tofu or chickpeas for a complete meal.
Beverage Pairings
To enhance your dining experience, consider the following beverages:
- Wine: A light white wine, such as Pinot Grigio, complements the flavors of the dish nicely.
- Suggested Cocktails: Fresh lemonade or mint-infused drinks offer a refreshing contrast to the rich pesto flavor.
FAQs
What is spaghetti squash?
Spaghetti squash is a unique variety of winter squash that, when cooked, has a stringy texture resembling spaghetti pasta. It is usually yellow or orange and is valued for its low-calorie, low-carb profile, making it popular among health-conscious eaters.
How long does it take to cook spaghetti squash in an Instant Pot?
Cooking spaghetti squash in an Instant Pot typically takes about 7 minutes at high pressure, followed by a quick release. The cooking time may vary slightly based on the size of the squash.
Can I use store-bought pesto?
While store-bought pesto can be convenient, making your own allows you to control the ingredients and customize the flavor. If you choose to use store-bought pesto, look for brands that are vegan-friendly and free from unnecessary preservatives.
Is spaghetti squash low-carb?
Yes, spaghetti squash is considered a low-carb alternative to traditional pasta. It contains about 7 grams of carbohydrates per cup, making it an excellent choice for those following low-carb or ketogenic diets.
Can I freeze spaghetti squash?
Yes, you can freeze cooked spaghetti squash! For best results, allow it to cool and then portion it into airtight containers. When ready to use, thaw in the refrigerator overnight or warm in the microwave until heated through.
Conclusion
Reiterate the benefits of Instant Pot Vegan Spaghetti Squash with Pesto, encourage readers to try the recipe, and invite them to share their experiences and variations.

Instant Pot Vegan Spaghetti Squash with Pesto
Equipment
- 1 Instant Pot
- 1 Cutting board
- 1 Food processor or blender
Ingredients
- 1 medium spaghetti squash About 3 pounds.
- 2 cups fresh basil leaves
- 1/4 cup pine nuts (or walnuts)
- 1/4 cup nutritional yeast
- 3 cloves garlic
- 1/2 cup olive oil Plus 2 tablespoons for cooking.
- to taste salt
- to taste pepper
- 1 tablespoon lemon juice Optional.
Instructions
- Cut the spaghetti squash in half lengthwise and scoop out the seeds. Drizzle 1 tablespoon of olive oil on the inside of each half, then sprinkle with salt and pepper.
- Add 1 cup of water to the Instant Pot and place the spaghetti squash halves on the trivet with the open side facing up. Close the lid and set the valve to sealing.
- Set the Instant Pot to manual high pressure for 10 minutes. Once cooking is complete, allow for a quick release of the pressure.
- In a food processor or blender, combine the basil leaves, pine nuts, nutritional yeast, garlic, and lemon juice (if using). Pulse until finely chopped.
- With the processor running, slowly add the olive oil until the mixture is well combined. Season with salt and pepper to taste.
- Once the pressure has been released, carefully remove the spaghetti squash from the Instant Pot. Use a fork to scrape the flesh into strands.
- In a large bowl, combine the spaghetti squash strands with the pesto, mixing thoroughly to coat the squash evenly.
- Serve immediately, garnished with additional pine nuts or fresh basil if desired.
