Easy Instant Pot Vegan Low-Carb Spaghetti Squash Ragu
Spaghetti squash has emerged as a popular low-carb alternative to traditional pasta, captivating health-conscious eaters and food enthusiasts alike. Its unique stringy texture mimics that of spaghetti when cooked, making it an excellent canvas for a variety of sauces and toppings. Rich in vitamins, minerals, and antioxidants, spaghetti squash is not only a delicious way to indulge your pasta cravings, but it also aligns seamlessly with low-carb dietary preferences without sacrificing flavor or satisfaction.
Enter the Instant Pot, a game-changing kitchen appliance that has revolutionized the way we cook. With its ability to combine pressure cooking, slow cooking, sautéing, and more, the Instant Pot significantly reduces cooking time while maximizing flavor and nutrition. Gone are the days of waiting for a pot of water to boil or spending hours stirring sauces on the stovetop. With the Instant Pot in your arsenal, preparing meals can be both quick and enjoyable, making it easier than ever to incorporate healthy, home-cooked dishes like this vegan spaghetti squash with mushroom ragu into your routine.
At the heart of this recipe lies a hearty and flavorful vegan mushroom ragu that not only tantalizes the taste buds but also provides a wealth of health benefits. Packed with vitamins, minerals, and plant-based protein, mushrooms serve as a nutritious powerhouse and lend an earthy depth to the sauce. Together with the spaghetti squash, this dish creates a colorful, satisfying meal that nurtures your body while aligning with vegan and low-carb dietary lifestyles. Whether you’re looking to reduce your carbohydrate intake, embrace a vegan diet, or simply explore new culinary creations, this easy Instant Pot recipe is sure to become a staple in your kitchen.

Understanding Spaghetti Squash
Spaghetti squash is a unique winter squash that has gained popularity as a low-carb alternative to traditional pasta. Its elongated shape and vibrant yellow skin give way to a fascinating interior when cooked; the flesh transforms into noodle-like strands resembling spaghetti, making it an appealing choice for those looking to enjoy pasta dishes without the added carbohydrates. Native to Central and South America, spaghetti squash has been cultivated for centuries, and its versatility has made it a culinary favorite in numerous cuisines.
Nutritionally, spaghetti squash is a powerhouse with a low calorie count and high fiber content. A one-cup serving of cooked spaghetti squash contains about 42 calories, 10 grams of carbohydrates, and 2 grams of protein, making it an excellent option for those seeking to maintain or lose weight. Additionally, it is rich in vitamins A and C, potassium, and several B vitamins, contributing to overall health and wellness. The fiber content also supports digestive health and can help regulate blood sugar levels, making it a smart addition to a balanced diet.
Instant Pot Cooking Benefits
The Instant Pot is a revolutionary kitchen appliance that has made cooking not only faster but also more efficient. One of its primary advantages is the significant time savings it offers. Traditional cooking methods often require long hours of simmering or boiling, but the Instant Pot can reduce that time to mere minutes. This speed makes it easier for busy individuals or families to enjoy homemade meals without the hassle of extensive meal prep.
Energy efficiency is another benefit of using an Instant Pot. Unlike traditional stovetops that may consume more energy and create additional heat in the kitchen, the Instant Pot uses a sealed environment to cook food quickly, conserving energy while maintaining high flavor. Moreover, the versatility of the Instant Pot allows it to function as a pressure cooker, slow cooker, sauté pan, and more, accommodating a variety of cooking needs and styles.
Understanding how the Instant Pot works can enhance your cooking experience. The pressure cooking method employed by the Instant Pot involves increasing the pressure inside the pot, which raises the boiling point of water and cooks food more quickly. With settings for manual pressure, slow cooking, sautéing, and steaming, you can easily adapt recipes to suit your preferences and dietary needs, making it ideal for preparing dishes like vegan spaghetti squash with mushroom ragu.

Section 3: Recipe for Easy Instant Pot Vegan Low-Carb Spaghetti Squash with Mushroom Ragu
3.1 Ingredients
To create this delightful vegan low-carb dish, you’ll need the following ingredients:
For the Spaghetti Squash:
- 1 medium spaghetti squash
- Salt, to taste
- Pepper, to taste
For the Mushroom Ragu:
- 2 tablespoons olive oil
- 1 medium onion, finely chopped
- 3 cloves garlic, minced
- 8 ounces mushrooms, sliced (button, cremini, or portobello work well)
- 1 can (15 ounces) diced tomatoes
- 2 tablespoons tomato paste
- 1 teaspoon dried oregano
- 1 teaspoon dried basil
- Salt and pepper, to taste
- Fresh parsley, for garnish
Tips for Sourcing Fresh Ingredients:
To elevate the flavors in your dish, try to source fresh, in-season vegetables from your local farmer’s market or grocery store. Organic options are recommended for the best taste and health benefits.
3.2 Directions
Step 1: Preparing the Spaghetti Squash
Begin by carefully cutting the spaghetti squash in half lengthwise. Use a spoon to scoop out the seeds and stringy bits, similar to cleaning a pumpkin. Once cleaned, season the inside of each half with salt and pepper. You can place the squash halves in the Instant Pot’s steaming rack for cooking.
Step 2: Cooking the Squash in the Instant Pot
Pour one cup of water into the Instant Pot and place the steaming rack with the spaghetti squash halves inside. Close the lid and set the valve to the sealing position. Choose the “Manual” or “Pressure Cook” setting and cook on high pressure for 7 minutes. After the cooking time is complete, do a quick release of the pressure. Carefully remove the squash and let it cool slightly before using a fork to shred the flesh into strands.
Step 3: Making the Mushroom Ragu
While the squash is cooking, heat the olive oil in the Instant Pot on the sauté function. Add the chopped onion, and sauté for 3-4 minutes until translucent. Stir in the minced garlic, cooking for an additional 1 minute until fragrant.
Add the sliced mushrooms to the pot, and cook for about 5-7 minutes, until they release their moisture and begin to brown. Next, stir in the diced tomatoes and tomato paste, ensuring everything is well combined. Add the dried oregano, basil, salt, and pepper. Allow the sauce to simmer for 10-15 minutes, stirring occasionally, until it thickens slightly and the flavors meld together. You can switch the Instant Pot to the warmer setting if you need to keep the sauce warm.
Step 4: Combining and Serving
To serve, place a generous portion of the spaghetti squash strands on a plate and ladle the mushroom ragu over the top. Garnish with freshly chopped parsley for added color and flavor.
3.3 Tips for Success
- Additional Flavoring Tips: Consider adding red pepper flakes for a spicy kick or a splash of balsamic vinegar for depth.
- Common Mistakes to Avoid: Do not overcook the squash, as it can become mushy. Aim for aldente strands.
- Storage and Reheating Suggestions: Store leftovers in an airtight container in the fridge for up to 3 days. Reheat in the microwave or on the stovetop.
Section 4: Nutritional Information
This dish not only satisfies your culinary cravings but also boasts impressive nutritional value. Here’s a breakdown of a typical serving:
- Calories: Approximately 150 calories
- Protein: 5 grams
- Fats: 7 grams
- Carbohydrates: 18 grams
In comparison to traditional spaghetti with meat sauce, which can contain over 500 calories and significantly higher carbohydrate content, this vegan spaghetti squash dish offers a nutritious alternative that aligns perfectly with a low-carb lifestyle.
Section 5: FAQs
5.1 How do you cut spaghetti squash easily?
To cut spaghetti squash safely, microwave it for 2-3 minutes to soften the skin slightly. This will make it easier to slice in half. Always use a sharp knife and steady cutting board.
5.2 Can I substitute other ingredients in the ragu?
Yes! Feel free to customize the ragu by adding your favorite vegetables such as zucchini, bell peppers, or spinach. You can also use lentils or beans for added protein.
5.3 What are some side dishes that go well with this meal?
Consider pairing your spaghetti squash with a simple green salad, garlic bread made from almond flour for low-carb, or roasted vegetables for a balanced meal.
5.4 How long does cooked spaghetti squash last in the fridge?
Cooked spaghetti squash can be stored in the refrigerator for up to 3-5 days. Keep it in an airtight container to maintain freshness.
5.5 Can I freeze the mushroom ragu for later use?
Absolutely! The mushroom ragu can be frozen for up to 3 months. Just ensure it is cooled completely before transferring to a freezer-safe container. Thaw it in the refrigerator overnight before reheating.
Section 6: Variations and Customizations
6.1 Adding More Vegetables
Enhance the nutritional profile of your dish by incorporating additional vegetables into the ragu. Options such as carrots, spinach, or bell peppers can add color, flavor, and extra health benefits.
6.2 Different Sauces and Flavor Profiles
If you’re in the mood to switch things up, try using different types of sauces. A tomato-based sauce can add a classic Italian flair, while a creamy cashew sauce can provide a rich, nutty flavor profile.
6.3 Protein Additions
For those looking to incorporate more protein into the meal, consider adding plant-based options like chickpeas, lentils, or even tofu. These ingredients can enhance the dish while maintaining its vegan and low-carb status.
Section 7: Conclusion
This easy Instant Pot vegan low-carb spaghetti squash with mushroom ragu offers a delightful and nutritious alternative to traditional pasta dishes. With the benefits of spaghetti squash and the time-saving convenience of the Instant Pot, this recipe aligns perfectly with health-conscious eating habits. Experiment with variations and enjoy the versatility this dish brings to your kitchen!
We encourage you to try this recipe and share your experiences in the comments section below. Happy cooking!

Easy Instant Pot Vegan Low-Carb Spaghetti Squash with Mushroom Ragu
Equipment
- 1 Instant Pot
- 1 Cutting board
- 1 Measuring cups
- 1 Measuring spoons
- 1 Wooden spoon or spatula
Ingredients
- 1 medium spaghetti squash About 3 pounds.
- 2 tablespoons olive oil
- 1 small onion Diced.
- 3 cloves garlic Minced.
- 8 ounces mushrooms Sliced (such as cremini or button).
- 1 can crushed tomatoes 14 ounces.
- 1 teaspoon dried oregano
- 1 teaspoon dried basil
- to taste salt
- to taste pepper
- fresh basil For garnish (optional).
Instructions
- Cut the spaghetti squash in half lengthwise and scoop out the seeds. Drizzle a little olive oil and sprinkle salt and pepper on the inside of the squash.
- Place the inner side of the squash facing up on the trivet inside the Instant Pot. Add 1 cup of water to the bottom of the pot. Close the lid, ensuring the pressure valve is set to sealing.
- Select the 'Manual' or 'Pressure Cook' setting and set the timer for 7 minutes on high pressure. Once done, allow the pressure to naturally release for 10 minutes, then carefully switch the valve to venting to release any remaining steam. Remove the spaghetti squash and set aside to cool slightly.
- While the squash is cooling, turn the Instant Pot to the 'Sauté' function. Add the olive oil and diced onions. Sauté for about 3-4 minutes until the onions are translucent.
- Add the minced garlic and mushrooms to the pot. Cook for an additional 5-6 minutes, stirring occasionally until the mushrooms are tender and browned.
- Pour in the crushed tomatoes, dried oregano, and dried basil. Season with salt and pepper to taste. Let the mixture simmer for about 5 minutes while stirring occasionally to allow the flavors to meld.
- Once the spaghetti squash is cool enough to handle, use a fork to scrape out the flesh into strands.
- Divide the spaghetti squash strands onto plates and top with the mushroom ragu. Garnish with fresh basil if desired.