This Greek-inspired vegan spaghetti squash recipe is a delightful blend of Mediterranean flavors. It's a healthy, low-carb alternative to traditional pasta dishes, featuring fresh vegetables and aromatic herbs. Perfect for a light lunch or dinner, this dish is both satisfying and nutritious.
If you don't usually cook with spaghetti squash, you might need to look for it in the produce section of your supermarket. Kalamata olives are typically found in the olive or international foods aisle. Make sure to get red wine vinegar from the vinegar section, and dried oregano from the spice aisle.

Ingredients For Greek Inspired Vegan Spaghetti Squash Recipe
Spaghetti squash: A large, yellow squash that, when cooked, separates into strands resembling spaghetti.
Olive oil: A staple in Mediterranean cooking, used for roasting and dressing.
Cherry tomatoes: Small, sweet tomatoes that add a burst of flavor and color.
Kalamata olives: Dark purple olives with a rich, tangy flavor, commonly used in Greek cuisine.
Red onion: Adds a sharp, slightly sweet flavor and a bit of crunch.
Red wine vinegar: Provides acidity and depth to the dish.
Dried oregano: A fragrant herb that is essential in Greek cooking.
Salt: Enhances the flavors of the ingredients.
Pepper: Adds a bit of heat and complexity.
Technique Tip for This Recipe
When roasting the spaghetti squash, make sure to place it cut-side down on the baking sheet. This allows the moisture to steam the squash from the inside, ensuring it becomes tender and easy to shred. Additionally, for an extra burst of flavor, you can sprinkle some garlic powder or herbs on the squash before roasting.
Suggested Side Dishes
Alternative Ingredients
spaghetti squash - Substitute with zucchini noodles: Zucchini noodles, also known as zoodles, provide a similar texture and are a great low-carb alternative.
olive oil - Substitute with avocado oil: Avocado oil has a similar healthy fat profile and a neutral flavor that works well in this dish.
cherry tomatoes - Substitute with grape tomatoes: Grape tomatoes have a similar sweetness and juiciness, making them a perfect alternative.
kalamata olives - Substitute with black olives: Black olives have a milder flavor but still provide the briny taste needed for this recipe.
red onion - Substitute with shallots: Shallots offer a milder, slightly sweeter flavor that complements the other ingredients well.
red wine vinegar - Substitute with apple cider vinegar: Apple cider vinegar has a similar acidity and tanginess, making it a good substitute.
dried oregano - Substitute with Italian seasoning: Italian seasoning contains oregano along with other herbs, providing a similar flavor profile.
salt - Substitute with sea salt: Sea salt has a similar taste and can be used in the same quantity.
pepper - Substitute with white pepper: White pepper has a similar heat and can be used to maintain the dish's flavor.
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How to Store or Freeze This Recipe
- Allow the spaghetti squash to cool completely before storing. This helps prevent condensation, which can make the dish soggy.
- Transfer the spaghetti squash strands and the tomato and olive mixture into separate airtight containers. This keeps the textures distinct and prevents the squash from becoming overly moist.
- Store the containers in the refrigerator. The spaghetti squash can be kept for up to 4-5 days, while the tomato and olive mixture will stay fresh for about 3-4 days.
- For freezing, place the cooled spaghetti squash strands in a freezer-safe bag or container. Remove as much air as possible to prevent freezer burn.
- Label the container with the date and contents. The spaghetti squash can be frozen for up to 3 months.
- To reheat, thaw the spaghetti squash in the refrigerator overnight. Warm it in a skillet over medium heat, adding a splash of olive oil if needed.
- The tomato and olive mixture is best enjoyed fresh, but if you must freeze it, follow the same steps as for the spaghetti squash. Note that the texture of the cherry tomatoes may change slightly upon thawing.
- When ready to serve, combine the reheated spaghetti squash with the tomato and olive mixture and enjoy your Greek-inspired vegan meal.
How to Reheat Leftovers
Oven Method: Preheat your oven to 350°F (175°C). Place the leftover spaghetti squash in an oven-safe dish. Cover with aluminum foil to prevent drying out. Heat for about 15-20 minutes, or until warmed through. This method helps maintain the texture of the spaghetti squash and the freshness of the cherry tomatoes and kalamata olives.
Stovetop Method: Heat a non-stick skillet over medium heat. Add a small amount of olive oil to the pan. Add the leftover spaghetti squash and gently stir until heated through, about 5-7 minutes. This method is quick and helps to keep the red onion and cherry tomatoes slightly crisp.
Microwave Method: Place the leftover spaghetti squash in a microwave-safe dish. Cover with a microwave-safe lid or plastic wrap, leaving a small vent for steam to escape. Heat on high for 2-3 minutes, stirring halfway through. This is the fastest method, but be careful not to overcook, as it can make the spaghetti squash mushy.
Steam Method: Fill a pot with a small amount of water and bring to a simmer. Place the leftover spaghetti squash in a steamer basket over the simmering water. Cover and steam for about 5 minutes, or until heated through. This method helps retain moisture and keeps the spaghetti squash strands from becoming too dry.
Best Tools for This Recipe
Oven: Used to roast the spaghetti squash until it is tender and easily shredded.
Baking sheet: Holds the spaghetti squash halves while they roast in the oven.
Sharp knife: Essential for cutting the spaghetti squash in half lengthwise.
Spoon: Used to scoop out the seeds from the spaghetti squash.
Fork: Helps to scrape out the spaghetti-like strands from the roasted squash.
Mixing bowl: Used to combine the cherry tomatoes, kalamata olives, red onion, olive oil, red wine vinegar, oregano, salt, and pepper.
Measuring spoons: Ensures accurate measurement of olive oil, red wine vinegar, and oregano.
Cutting board: Provides a safe surface for cutting the spaghetti squash, cherry tomatoes, and red onion.
Serving bowl: Holds the shredded spaghetti squash and the prepared tomato and olive mixture for serving.
Tongs: Useful for handling the hot spaghetti squash halves after roasting.
How to Save Time on This Recipe
Pre-roast the squash: Roast the spaghetti squash ahead of time and store it in the fridge. Reheat when ready to use.
Use pre-sliced ingredients: Buy pre-sliced red onions and pitted kalamata olives to cut down on prep time.
Batch prep toppings: Prepare the tomato and olive mixture in advance and store it in an airtight container.
Microwave option: If short on time, microwave the spaghetti squash for 10-12 minutes instead of roasting.
One-pan method: Combine all ingredients in a single baking dish for a one-pan meal to save on cleanup.

Greek Inspired Vegan Spaghetti Squash Recipe
Ingredients
Main Ingredients
- 1 large Spaghetti Squash
- 2 tablespoon Olive Oil
- 1 cup Cherry Tomatoes, halved
- ½ cup Kalamata Olives, pitted and sliced
- ¼ cup Red Onion, thinly sliced
- 1 tablespoon Red Wine Vinegar
- 1 teaspoon Dried Oregano
- to taste Salt and Pepper
Instructions
- Preheat your oven to 400°F (200°C).
- Cut the spaghetti squash in half lengthwise and scoop out the seeds.
- Drizzle the inside of the squash with 1 tablespoon of olive oil and season with salt and pepper. Place the squash halves cut-side down on a baking sheet.
- Roast in the preheated oven for about 40-45 minutes, or until the squash is tender and easily shredded with a fork.
- While the squash is roasting, prepare the topping. In a mixing bowl, combine the cherry tomatoes, kalamata olives, red onion, remaining olive oil, red wine vinegar, oregano, salt, and pepper. Toss to mix well.
- Once the squash is done, use a fork to scrape out the spaghetti-like strands into a serving bowl.
- Top the spaghetti squash with the prepared tomato and olive mixture. Serve immediately.
Nutritional Value
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