A deliciously creamy and savory filling of spinach and mushrooms stuffed into roasted spaghetti squash, making for a healthy and satisfying dish. This Creamy Spinach and Mushroom Stuffed Spaghetti Squash is perfect for family dinners, meal prep, or impressing guests. Its unique combination of flavors and textures makes it a standout choice for any occasion.

Jump to:
- Why You’ll Love This Recipe
- Tools and Preparation
- Essential Tools and Equipment
- Importance of Each Tool
- Ingredients
- For the Spaghetti Squash
- For the Filling
- How to Make Creamy Spinach and Mushroom Stuffed Spaghetti Squash
- Step 1: Preheat the Oven
- Step 2: Prepare the Spaghetti Squash
- Step 3: Roast the Squash
- Step 4: Cook the Vegetables
- Step 5: Combine Filling Ingredients
- Step 6: Prepare Squash Strands
- Step 7: Combine Squash with Filling
- Step 8: Stuff the Squash Halves
- Step 9: Bake Again
- Step 10: Serve Warm
- How to Serve Creamy Spinach and Mushroom Stuffed Spaghetti Squash
- With a Fresh Salad
- As a Main Dish
- Topped with Fresh Herbs
- Alongside Grilled Chicken
- How to Perfect Creamy Spinach and Mushroom Stuffed Spaghetti Squash
- Best Side Dishes for Creamy Spinach and Mushroom Stuffed Spaghetti Squash
- Common Mistakes to Avoid
- Storage & Reheating Instructions
- Refrigerator Storage
- Freezing Creamy Spinach and Mushroom Stuffed Spaghetti Squash
- Reheating Creamy Spinach and Mushroom Stuffed Spaghetti Squash
- Frequently Asked Questions
- Can I use frozen spinach for this recipe?
- How do I know when my spaghetti squash is done roasting?
- Can I customize the filling for my Creamy Spinach and Mushroom Stuffed Spaghetti Squash?
- Is it possible to make this recipe vegan?
- Final Thoughts
- 📖 Recipe Card
Why You’ll Love This Recipe
- Healthy and Nutritious: Packed with fresh spinach and mushrooms, this dish is loaded with vitamins and minerals.
- Vegetarian-Friendly: A great option for non-meat eaters while still being filling and satisfying.
- Easy to Prepare: Simple steps make this recipe accessible for cooks of all skill levels.
- Deliciously Creamy: The blend of cream cheese and mozzarella creates a rich texture that complements the squash perfectly.
- Versatile Serving Options: Enjoy it as a main dish or a side; it pairs well with various proteins.
Tools and Preparation
Having the right tools on hand can make your cooking experience smoother. Here are some essential items you’ll need to whip up this delightful dish.
Essential Tools and Equipment
- Baking sheet
- Chef’s knife
- Skillet
- Mixing bowl
- Fork
Importance of Each Tool
- Baking sheet: Perfect for roasting the spaghetti squash evenly, ensuring tender strands.
- Skillet: Ideal for sautéing the onions, garlic, mushrooms, and spinach to enhance their flavors.

Ingredients
A deliciously creamy and savory filling of spinach and mushrooms stuffed into roasted spaghetti squash, making for a healthy and satisfying dish.
For the Spaghetti Squash
- 1 medium spaghetti squash
- 2 tablespoons olive oil
- Salt and pepper to taste
For the Filling
- 1 small onion, diced
- 2 cloves garlic, minced
- 8 ounces mushrooms, sliced
- 4 cups fresh spinach
- 1/2 cup cream cheese, softened
- 1/4 cup grated Parmesan cheese
- 1/4 teaspoon nutmeg
- 1/2 cup shredded mozzarella cheese
How to Make Creamy Spinach and Mushroom Stuffed Spaghetti Squash
Step 1: Preheat the Oven
Preheat your oven to 400°F (200°C) to ensure it’s hot when you’re ready to roast the squash.
Step 2: Prepare the Spaghetti Squash
- Cut the spaghetti squash in half lengthwise.
- Scoop out the seeds using a spoon.
- Drizzle olive oil inside each half.
- Season with salt and pepper to taste.
Step 3: Roast the Squash
Place the squash halves cut side down on a baking sheet. Roast them in the preheated oven for 30-35 minutes or until they are tender when pierced with a fork.
Step 4: Cook the Vegetables
- In a skillet over medium heat, add olive oil.
- Sauté the diced onion until translucent (about 4-5 minutes).
- Add minced garlic; cook for an additional minute.
- Stir in sliced mushrooms; cook until browned and their moisture has evaporated (about 5-7 minutes).
- Add fresh spinach; cook until wilted (about 2-3 minutes). Remove from heat.
Step 5: Combine Filling Ingredients
In a mixing bowl, combine softened cream cheese, grated Parmesan cheese, nutmeg, salt, pepper, and the cooked mushroom-spinach mixture. Mix well until all ingredients are evenly incorporated.
Step 6: Prepare Squash Strands
Once roasted, use a fork to scrape out the flesh of each squash half into spaghetti-like strands.
Step 7: Combine Squash with Filling
Mix the scraped squash strands with your creamy filling until well combined.
Step 8: Stuff the Squash Halves
Spoon the mixture back into each half of the spaghetti squash. Top with shredded mozzarella cheese.
Step 9: Bake Again
Return stuffed squash to the oven. Bake for an additional 10-15 minutes or until the mozzarella is melted and bubbly.
Step 10: Serve Warm
Take out from oven carefully; let cool slightly before serving warm as a delicious main course or side dish! Enjoy your Creamy Spinach and Mushroom Stuffed Spaghetti Squash!
How to Serve Creamy Spinach and Mushroom Stuffed Spaghetti Squash
Serving Creamy Spinach and Mushroom Stuffed Spaghetti Squash can elevate the dining experience, making it both visually appealing and satisfying. Here are some creative ways to serve this delicious dish.
With a Fresh Salad
- A mixed green salad with a light vinaigrette adds a refreshing contrast to the creamy filling.
As a Main Dish
- Serve the stuffed squash as the centerpiece of your meal, paired with garlic bread for dipping into the creamy goodness.
Topped with Fresh Herbs
- Garnish with chopped parsley or basil to enhance flavor and add a pop of color.
Alongside Grilled Chicken
- Pairing with grilled chicken provides protein and complements the flavors of the stuffed squash nicely.
How to Perfect Creamy Spinach and Mushroom Stuffed Spaghetti Squash
Perfecting this recipe can take your dish from great to unforgettable. Here are some tips you can follow.
- Choose Ripe Squash: Look for a spaghetti squash that is firm and has a uniform color for the best flavor and texture.
- Adjust Seasonings: Always taste your filling before stuffing the squash. Adjust salt, pepper, or nutmeg according to your preference.
- Don’t Overcook: Be cautious not to over-roast the spaghetti squash; it should be tender but still hold its shape.
- Experiment with Cheeses: Try adding different cheeses like feta or gouda for a unique twist on flavor.
- Make Ahead: Prepare the filling in advance and stuff just before baking for an easy weeknight meal option.
- Add Protein: Incorporating cooked chicken or turkey into the filling can make it more hearty if desired.
Best Side Dishes for Creamy Spinach and Mushroom Stuffed Spaghetti Squash
Pairing side dishes with your stuffed spaghetti squash can enhance the overall meal. Here are some excellent options to consider.
Garlic Bread
A crispy garlic bread complements the creamy filling perfectly, providing a crunchy texture contrast.Roasted Vegetables
Seasonal roasted veggies like carrots, bell peppers, or zucchini offer vital nutrients and vibrant colors on your plate.Quinoa Salad
A light quinoa salad tossed with lemon juice and herbs provides a nutritious accompaniment filled with protein.Steamed Broccoli
Steamed broccoli adds green goodness while balancing out the richness of the stuffed squash.Couscous Pilaf
Fluffy couscous mixed with vegetables makes for a delightful side that pairs well with any stuffing flavor profile.Cauliflower Rice
A low-carb alternative that absorbs flavors well, cauliflower rice can be seasoned simply or mixed with herbs for added taste.
Common Mistakes to Avoid
To achieve the best results with your Creamy Spinach and Mushroom Stuffed Spaghetti Squash, avoid these common pitfalls.
- Skipping the roasting step: Not roasting the spaghetti squash properly can lead to a tough texture. Always roast until tender for the best results.
- Overcooking the filling: Cooking the spinach and mushrooms too long can make them mushy. Sauté just until tender to maintain a good texture.
- Using too much salt: It’s easy to over-season. Start with small amounts and adjust to taste after mixing the filling.
- Not letting the squash cool slightly: Diving in too soon can burn your hands. Allow it to cool for a few minutes before handling.
- Forgetting to scrape the squash strands: If you skip this step, you may miss out on that spaghetti-like texture that makes this dish unique.

Storage & Reheating Instructions
Refrigerator Storage
- Store in an airtight container for up to 3 days.
- Ensure it’s cooled completely before sealing.
Freezing Creamy Spinach and Mushroom Stuffed Spaghetti Squash
- Freeze in a freezer-safe container for up to 2 months.
- Label the container with the date for easy tracking.
Reheating Creamy Spinach and Mushroom Stuffed Spaghetti Squash
- Oven: Preheat to 350°F (175°C) and bake for about 20 minutes until heated through.
- Microwave: Heat on medium power in short intervals, stirring in between, until warm.
- Stovetop: Place in a skillet over medium heat, stirring gently until warmed throughout.
Frequently Asked Questions
Here are some common questions about making Creamy Spinach and Mushroom Stuffed Spaghetti Squash.
Can I use frozen spinach for this recipe?
Yes, frozen spinach works well! Just thaw it and drain excess water before adding it to the filling.
How do I know when my spaghetti squash is done roasting?
It’s done when the flesh is easily pierced with a fork and feels tender. This usually takes around 30-35 minutes at 400°F (200°C).
Can I customize the filling for my Creamy Spinach and Mushroom Stuffed Spaghetti Squash?
Absolutely! You can add different vegetables or substitute cheeses based on your preferences.
Is it possible to make this recipe vegan?
Yes! Replace cream cheese with a plant-based alternative and use nutritional yeast instead of Parmesan cheese.
Final Thoughts
Creamy Spinach and Mushroom Stuffed Spaghetti Squash is not only delicious but also versatile. Feel free to customize it with your favorite ingredients or spices. Try making this dish today; it’s sure to impress!
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📖 Recipe Card
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Creamy Spinach and Mushroom Stuffed Spaghetti Squash
- Total Time: 1 hour 5 minutes
- Yield: Serves 4
Description
Indulge in the wholesome goodness of Creamy Spinach and Mushroom Stuffed Spaghetti Squash, a delightful dish that combines the earthy flavors of mushrooms and the freshness of spinach, all enveloped in a creamy filling. This recipe showcases roasted spaghetti squash as a nutritious vessel for a savory mix that’s both satisfying and healthy. Perfect for family dinners or meal prep, this dish is sure to impress your guests with its unique taste and beautiful presentation. Enjoy it as a hearty main course or a delicious side; it’s versatile enough to complement various proteins.
Ingredients
- 1 medium spaghetti squash
- 2 tablespoons olive oil
- Salt and pepper to taste
- 1 small onion, diced
- 2 cloves garlic, minced
- 8 ounces mushrooms, sliced
- 4 cups fresh spinach
- 1/2 cup cream cheese, softened
- 1/4 cup grated Parmesan cheese
- 1/4 teaspoon nutmeg
- 1/2 cup shredded mozzarella cheese
Instructions
- Preheat oven to 400°F (200°C).
- Cut the spaghetti squash in half lengthwise and scoop out seeds. Drizzle with olive oil and season with salt and pepper.
- Place cut-side down on a baking sheet and roast for 30-35 minutes until tender.
- In a skillet, heat olive oil over medium heat. Sauté onion until translucent, then add garlic for another minute.
- Stir in mushrooms until browned and moisture evaporates, then add spinach until wilted. Remove from heat.
- In a bowl, combine cream cheese, Parmesan, nutmeg, salt, pepper, and cooked vegetables.
- Scrape out spaghetti-like strands from roasted squash and mix with filling.
- Stuff mixture back into squash halves and top with mozzarella cheese. Bake for another 10-15 minutes until bubbly.
- Serve warm.
- Prep Time: 15 minutes
- Cook Time: 50 minutes
- Category: Main
- Method: Baking
- Cuisine: Vegetarian
Nutrition
- Serving Size: 1 stuffed half (approximately 300g)
- Calories: 320
- Sugar: 5g
- Sodium: 450mg
- Fat: 20g
- Saturated Fat: 10g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 25g
- Fiber: 6g
- Protein: 12g
- Cholesterol: 45mg