• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
All Foodie Recipes | Delicious and Easy-to-Make Recipes

All Foodie Recipes | Delicious and Easy-to-Make Recipes

  • Home
  • Recipe Index
  • Dinner Ideas
  • Desserts
  • Soups
  • About
  • Contact
All Foodie Recipes | Delicious and Easy-to-Make Recipes
  • Pinterest
  • Home
  • Recipe Index
  • Dinner Ideas
  • Desserts
  • Soups
  • About
  • Contact
  • Pinterest
Home » Recipe Index » Healthy Spaghetti Squash Au Gratin

Healthy Spaghetti Squash Au Gratin

September 12, 2025 by Angela

Jump to Recipe·Print Recipe

This Healthy Spaghetti Squash Au Gratin is a delightful dish that combines comfort and health in every bite. Perfect for weeknight dinners or holiday feasts, this recipe transforms spaghetti squash into a creamy, cheesy delight that everyone will love. Packed with nutritious ingredients, it’s an easy way to enjoy a classic comfort food without the guilt.

Why You’ll Love This Recipe

  • Rich and Creamy Flavor: The combination of Greek yogurt and sharp cheddar creates a deliciously creamy texture that satisfies your cheese cravings.
  • Low-Carb Delight: This dish is naturally low in carbohydrates, making it a great option for those looking to reduce their carb intake without sacrificing flavor.
  • Versatile Serving Options: Enjoy it as a hearty side dish or elevate it to a main course by adding your favorite protein.
  • Easy Preparation: With simple steps and minimal prep time, you can have this dish ready in no time.
  • Vegetable-Packed Goodness: Spaghetti squash adds essential nutrients while keeping the dish light and healthy.

Tools and Preparation

Before diving into the cooking process, gather your kitchen essentials to make this recipe seamless.

Essential Tools and Equipment

  • Baking sheet
  • Skillet
  • Casserole dish
  • Fork
  • Mixing bowl

Importance of Each Tool

  • Baking sheet: A must-have for roasting the spaghetti squash evenly until tender.
  • Skillet: Perfect for sautéing onions and garlic, enhancing their flavors before mixing them into the squash.
  • Casserole dish: Ideal for baking the final mixture to achieve that bubbly, golden top.

Ingredients

For the Spaghetti Squash Au Gratin

  • 1 medium spaghetti squash
  • 1 tbsp olive oil
  • ½ cup diced onion
  • 2 cloves garlic (minced)
  • ½ cup plain Greek yogurt (or sour cream)
  • 1½ cups shredded sharp cheddar cheese (divided)
  • ¼ tsp salt
  • ¼ tsp black pepper
  • Optional: ¼ tsp paprika or dried thyme

How to Make Healthy Spaghetti Squash Au Gratin

Step 1: Preheat the Oven

Preheat your oven to 400°F (205°C). While it heats up, slice the spaghetti squash in half lengthwise and scoop out the seeds.

Step 2: Roast the Squash

  • Brush the cut sides of the squash with olive oil.
  • Place them face-down on a baking sheet.
  • Roast in the oven for 35–40 minutes until tender.

Step 3: Sauté Onions and Garlic

While the squash roasts:
* Heat a skillet over medium heat.
* Sauté diced onion in olive oil until softened (about 5 minutes).
* Add minced garlic and cook for an additional minute. Remove from heat.

Step 4: Shred the Squash

Once cool enough to handle:
* Use a fork to shred the roasted spaghetti squash into noodle-like strands.

Step 5: Combine Ingredients

In a large mixing bowl:
* Mix together shredded squash, sautéed onions and garlic, Greek yogurt, 1 cup of cheese, salt, pepper, and optional spices like paprika or thyme.

Step 6: Transfer to Casserole Dish

Transfer the mixture into a greased casserole dish. Top with the remaining ½ cup of cheese.

Step 7: Bake Until Bubbly

Bake at 375°F for about 20–25 minutes until hot and bubbly with a golden top.

Step 8: Serve and Enjoy!

Let cool slightly before serving. Enjoy your Healthy Spaghetti Squash Au Gratin as a wholesome side dish or light main course!

How to Serve Healthy Spaghetti Squash Au Gratin

This Healthy Spaghetti Squash Au Gratin makes for a versatile dish that can be enjoyed in various ways. Whether you want to serve it as a main or a side, here are some delightful suggestions to elevate your dining experience.

As a Side Dish

  • Perfect Pairing: Serve it alongside grilled chicken or fish for a balanced meal.
  • Holiday Spread: This dish shines on festive tables, complementing roasted meats and seasonal veggies.

As a Main Course

  • Light Dinner Option: Enjoy it on its own with a simple side salad for a nutritious dinner.
  • Veggie Delight: Add more sautéed vegetables like spinach or mushrooms to enhance the flavors and nutrients.

For Meal Prep

  • Make Ahead: Prepare this dish in advance and reheat it for quick lunches or dinners throughout the week.
  • Freezing Friendly: Freeze portions for later use; just bake from frozen when you’re ready to eat!
Healthy

How to Perfect Healthy Spaghetti Squash Au Gratin

To ensure your Healthy Spaghetti Squash Au Gratin turns out perfectly every time, follow these handy tips.

  • Use Fresh Ingredients: Fresh spaghetti squash and high-quality cheese will greatly enhance the flavor.
  • Don’t Overcook: Be mindful of your roasting time; overcooked squash can become mushy.
  • Taste Before Baking: Always taste the mixture before baking to adjust seasoning as needed.
  • Experiment with Cheese: Try different types of cheese like Gruyère or mozzarella for added flavor variations.
  • Add Crunch: Top with breadcrumbs mixed with herbs for an extra crunchy texture on top.
  • Let It Rest: Allow the dish to cool slightly before serving; this helps set the layers and makes serving easier.

Best Side Dishes for Healthy Spaghetti Squash Au Gratin

Pairing side dishes with your Healthy Spaghetti Squash Au Gratin can enhance your meal. Here are some great options:

  1. Garlic Roasted Broccoli: Simple yet flavorful, this dish adds a nutritious crunch.
  2. Herb-Infused Quinoa: A light and fluffy grain that complements the creaminess of the gratin.
  3. Mixed Greens Salad: A fresh salad with vinaigrette brings balance to your plate.
  4. Balsamic Glazed Brussels Sprouts: Their sweetness pairs wonderfully with the savory gratin.
  5. Sautéed Green Beans: Quick and easy, they add color and nutrients without overpowering flavors.
  6. Cauliflower Rice Pilaf: A low-carb option that absorbs flavors beautifully while keeping things light.

Common Mistakes to Avoid

When making Healthy Spaghetti Squash Au Gratin, it’s easy to make a few common mistakes. Here are some to watch out for:

  • Overcooking the Squash: If you roast the spaghetti squash for too long, it can become mushy. Keep an eye on it and check for tenderness around the 35-minute mark.
  • Using Low-Quality Cheese: Using cheap cheese can affect the flavor and texture of your dish. Opt for a good-quality sharp cheddar for the best results.
  • Skipping Seasoning: Not seasoning the mixture properly can lead to bland flavors. Don’t forget the salt, pepper, and optional spices to enhance taste.
  • Ignoring Cooling Time: Cutting into the gratin right after baking can cause it to fall apart. Allow it to cool slightly before serving to help it set up nicely.
  • Not Greasing the Dish: Failing to grease your casserole dish can result in sticking. Use cooking spray or olive oil to ensure easy serving.

Refrigerator Storage

  • Store leftovers in an airtight container.
  • Consume within 3–5 days for best quality.

Freezing Healthy Spaghetti Squash Au Gratin

  • Use a freezer-safe container or wrap tightly in plastic wrap.
  • Can be frozen for up to 2–3 months.

Reheating Healthy Spaghetti Squash Au Gratin

  • Oven: Preheat to 350°F (175°C). Cover with foil and heat for about 20 minutes or until warmed through.
  • Microwave: Place in a microwave-safe dish and heat on medium power in 1-minute intervals until hot.
  • Stovetop: Heat in a skillet over low heat, stirring occasionally until warmed through.

Frequently Asked Questions

What makes Healthy Spaghetti Squash Au Gratin healthy?

This dish is lower in carbohydrates than traditional gratins due to the use of spaghetti squash instead of pasta. It’s also packed with veggies and made with Greek yogurt, making it a nutritious option.

Can I customize Healthy Spaghetti Squash Au Gratin?

Absolutely! You can add different vegetables like spinach or mushrooms, or swap out cheeses based on your preference.

How do I know when my spaghetti squash is done roasting?

The squash is done when it’s tender and easily pierced with a fork. It should be golden brown on the outside as well.

Is Healthy Spaghetti Squash Au Gratin suitable for meal prep?

Yes! This dish stores well and can be made ahead of time, making it perfect for meal prep during busy weeks.

Can I make this recipe dairy-free?

Yes! Substitute Greek yogurt with plant-based yogurt and use dairy-free cheese alternatives.

Final Thoughts

Healthy Spaghetti Squash Au Gratin is not only delicious but also versatile. It serves as a fantastic side dish or light main course that’s perfect for any occasion. Feel free to customize it with your favorite vegetables or spices for an even more personalized touch.

Print

Healthy Spaghetti Squash Au Gratin

Healthy Spaghetti Squash Au Gratin
Print Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

No reviews

Indulge in the guilt-free comfort of Healthy Spaghetti Squash Au Gratin, a delightful twist on a classic dish. This creamy, cheesy bake combines the wholesome goodness of spaghetti squash with rich flavors from Greek yogurt and sharp cheddar cheese, making it a perfect choice for both weeknight dinners and festive gatherings. Not only is this recipe low in carbs, but it also provides a healthy dose of nutrients, ensuring that you can enjoy comfort food without compromising your health goals. Whether served as a hearty side or a light main course, this versatile dish is sure to impress everyone at your table.

  • Author: Angela
  • Prep Time: 15 minutes
  • Cook Time: 60 minutes
  • Total Time: 1 hour 15 minutes
  • Yield: Serves approximately 6
  • Category: Main Course
  • Method: Baking
  • Cuisine: American

Ingredients

Scale
  • 1 medium spaghetti squash
  • 1 tbsp olive oil
  • ½ cup diced onion
  • 2 cloves garlic (minced)
  • ½ cup plain Greek yogurt
  • 1½ cups shredded sharp cheddar cheese (divided)
  • ¼ tsp salt
  • ¼ tsp black pepper

Instructions

  1. Preheat oven to 400°F (205°C). Halve the spaghetti squash lengthwise and scoop out seeds.
  2. Brush cut sides with olive oil, place face-down on a baking sheet, and roast for 35–40 minutes until tender.
  3. In a skillet over medium heat, sauté diced onion in olive oil for about 5 minutes; add minced garlic for an additional minute.
  4. Once cooled, shred the roasted squash into strands using a fork.
  5. In a mixing bowl, combine shredded squash, sautéed onions and garlic, Greek yogurt, 1 cup cheddar cheese, salt, and pepper.
  6. Transfer mixture to a greased casserole dish and top with remaining cheese.
  7. Bake at 375°F for 20–25 minutes until bubbly and golden.

Nutrition

  • Serving Size: 1 cup (200g)
  • Calories: 250
  • Sugar: 4g
  • Sodium: 450mg
  • Fat: 12g
  • Saturated Fat: 6g
  • Unsaturated Fat: 4g
  • Trans Fat: 0g
  • Carbohydrates: 18g
  • Fiber: 4g
  • Protein: 14g
  • Cholesterol: 30mg

Did you make this recipe?

Share a photo and tag us — we can't wait to see what you've made!

« Previous Post
Crispy Smashed Carrots
Next Post »
Buttermilk Beignets: A Deliciously Fluffy Recipe You Must Try

Reader Interactions

Leave a Comment Cancel reply

Helpful comments include feedback on the post or changes you made.

Recipe rating 5 Stars 4 Stars 3 Stars 2 Stars 1 Star

Primary Sidebar

Easy Roasted Tomato Soup

Easy Roasted Tomato Soup

Irresistible Cheesy Garlic Chicken Wraps You'll Love!

Irresistible Cheesy Garlic Chicken Wraps You’ll Love!

One-Pot Creamy Spicy Buffalo Chicken Pasta: An Incredible Ultimate Recipe

One-Pot Creamy Spicy Buffalo Chicken Pasta: An Incredible Ultimate Recipe

  • Privacy Policy
  • Cookies Policy
  • DMCA Policy
  • GDPR
  • Terms of Service
  • About
  • Contact
  • Pinterest

© 2025 · All Foodie Recipes | ALL RIGHTS RESERVED