Introduction to Spaghetti Squash Au Gratin
If you’re on the lookout for a delicious and nutritious side dish, spaghetti squash au gratin is a wonderful option that you won’t want to miss. This versatile vegetable is not just a great lower-carb substitute for traditional starchy sides, but it’s also packed with vitamins and minerals. One cup of cooked spaghetti squash contains only about 42 calories, making it a smart choice for health-conscious eaters. If you want to learn more about the benefits of incorporating squash into your dishes, check out this Nutritional Guide.
Why Choose Spaghetti Squash as a Side Dish?
There are several compelling reasons to make spaghetti squash your go-to side. First and foremost, it’s incredibly easy to prepare. Simply microwave it, scrape out the spaghetti-like strands, and you’re good to go! Its mild flavor makes it a blank canvas that pairs beautifully with various seasonings and sauces.
Another bonus? Spaghetti squash is rich in antioxidants like beta-carotene, which is essential for maintaining healthy skin and vision. It’s also a fantastic way to sneak in more veggies for those who might be picky eaters—especially kids! This spaghetti squash au gratin recipe combines the squash with creamy sour cream and cheesy goodness, making it an ideal way to introduce this nutritious vegetable to your family’s dinner table.
Not only do you get a comforting dish reminiscent of classic gratin, but it also aligns perfectly with a lighter lifestyle. It’s a win-win!

Ingredients for Spaghetti Squash Au Gratin
Essential ingredients for the dish
For a delightful spaghetti squash au gratin, you'll need a handful of key ingredients that work harmoniously to create that cheesy, comforting experience. Here’s what you’ll need:
- 1 spaghetti squash, halved and seeded
- 3 tablespoons light margarine
- 1 small yellow onion, thinly sliced
- 1 teaspoon red pepper flakes (adjust to taste)
- ¼ teaspoon garlic powder
- Salt and freshly ground black pepper to taste
- ¾ cup fat-free sour cream
- 1 cup shredded light Cheddar cheese
- Cooking spray for greasing
These ingredients combine to give your dish a creamy texture and a touch of zest with the red pepper flakes.
Optional ingredients for customization
Want to elevate your spaghetti squash au gratin? Consider adding a few optional ingredients for a personal touch:
- Chopped turkey bacon or chicken ham for added protein
- Fresh herbs like parsley or chives for garnish
- Different types of cheese, such as mozzarella or Gruyère, for varied flavor
- Crushed garlic for more robust taste
Feel free to experiment with what you have in your pantry! This dish is versatile, making it easy to suit your preferences or dietary needs.
For more recipe ideas, check out EatingWell or The Spruce Eats for inspiration!
Preparing Spaghetti Squash Au Gratin
Making spaghetti squash au gratin is not just about satisfying your hunger; it’s also a delightful experience that combines robust flavors with comforting textures. Follow these simple steps to create a delicious, lower-carb alternative to traditional potato gratin that even meat lovers will appreciate.
Prep the spaghetti squash
To start, we need to tackle the star of this dish: the spaghetti squash. Begin by halving the squash lengthwise and removing the seeds. This step can get a bit messy, but don’t worry! Just scoop out the seeds with a spoon and you’ll be ready to go. For a fast and efficient cooking method, place the halved squash in a covered dish with about ¼ inch of water and pop it in the microwave for 10 to 12 minutes. The squash will soften, allowing you to easily scrape out the insides into a small bowl. This versatile veggie will give you those delightful spaghetti-like strands that we’re going for!
Sauté the onion and spices
Next up, it’s time to layer in some amazing flavors. In a medium skillet, heat 3 tablespoons of light margarine over medium heat. Add in a thinly sliced small yellow onion, along with 1 teaspoon of red pepper flakes and ¼ teaspoon of garlic powder. Season with salt and freshly ground black pepper to taste. Sauté this mixture for about 5 to 10 minutes until the onions turn a beautiful golden brown. The aroma alone will make your kitchen feel like a cozy restaurant! For some additional tips on sauteing vegetables, check out this guide on the science of sautéing from Serious Eats.
Mix the ingredients together
Now, let’s bring everything together for that creamy goodness. In your bowl of spaghetti squash, stir in the sautéed onion mixture, ¾ cup of fat-free sour cream, and half of your shredded light Cheddar cheese. It’s like a flavor party in there! Mix everything until well combined, and don’t forget to taste it. You might want to adjust the seasoning with a bit more salt or pepper at this point.
Assemble in the baking dish
Preheat your oven to 375°F (190°C) while you prepare your baking dish. Coat it with some cooking spray to prevent sticking. Transfer the spaghetti squash mixture into the dish and spread it out evenly. Top it off with the remaining Cheddar cheese, ensuring that every bite will be cheesy perfection!
Bake and broil for perfection
The best part is coming up! Pop your baking dish into the preheated oven and bake for 20 to 25 minutes, until everything is bubbly and golden brown. For that irresistible crispy top, switch your oven to broil for the last 2 to 3 minutes—just keep a close eye on it to avoid burning. When you pull this spaghetti squash au gratin from the oven, prepare for compliments and requests for seconds. Enjoy the creamy, cheesy goodness!

Variations on Spaghetti Squash Au Gratin
Cheesy Vegetable Au Gratin
For a colorful twist on spaghetti squash au gratin, consider adding more veggies! Incorporate steamed broccoli, spinach, or diced bell peppers to the mix. These vibrant additions not only enhance the dish's visual appeal but also boost the nutritional content. Plus, the melted cheese creates a deliciously gooey coating that holds everything together, making it a family favorite. For more veggie inspiration, check out ** this great resource on vegetables**!
Spicy Au Gratin with Turkey Bacon
If you're craving a little heat, spice up your spaghetti squash au gratin by adding some crispy diced turkey bacon. Fry it up until it's perfectly crispy, then fold it into the main mixture before baking. The savory flavor of turkey bacon, along with a sprinkle of crushed red pepper, will have your taste buds dancing. Want to explore more ways to add spice? Consider topping it with jalapeños or a drizzle of hot sauce for an extra kick!
Cooking Tips and Notes for Spaghetti Squash Au Gratin
Tips for Cooking Spaghetti Squash
Cooking spaghetti squash can be a breeze! One of the easiest methods is microwaving. Just halve the squash, seed it, and place it in a covered dish with a little water. Microwave for about 10 to 12 minutes until tender. Pro tip: Let it cool slightly before scraping the insides with a fork to create those beautiful strands. For additional cooking methods, you can also roast it in the oven for more flavor and texture.
Suggestions for Ingredient Swaps
Feel free to get creative with your spaghetti squash au gratin! You can swap out light margarine for olive oil or butter for a richer taste. Instead of light Cheddar cheese, try a blend of your favorites like mozzarella or Parmesan for a twist. If you want a protein boost, consider adding cooked Turkey Bacon or Chicken Ham. Want it creamy but lighter? Greek yogurt can also replace sour cream. The possibilities are endless!
For more cooking tips, check out resources like Serious Eats and Food Network.

Serving suggestions for Spaghetti Squash Au Gratin
Pairing with proteins
For a heartier meal, consider serving your spaghetti squash au gratin alongside grilled chicken or turkey bacon. Both options complement the dish's creamy texture and add a protein boost. If you're feeling adventurous, try pairing it with a side of seasoned shrimp or even some flavorful chicken ham. These meats not only enhance the meal but also create a balanced plate, perfect for family dinners or hosting friends.
Serving as a main dish for vegetarians
The spaghetti squash au gratin shines as a delightful main course for vegetarians. Packed with flavor from the sautéed onions and seasoned with red pepper flakes, this dish can be the centerpiece of a meatless meal. For an extra layer of nutrition, serve it with a side salad featuring mixed greens or a refreshing cucumber and tomato mix. This combo creates vibrant dinner options that satisfy without skimping on deliciousness!
Explore more about spaghetti squash with this comprehensive guide to fully appreciate its versatility and health benefits.
Time Breakdown for Spaghetti Squash Au Gratin
Preparation Time
Getting started with your spaghetti squash au gratin is a breeze! You'll need about 15 minutes to prep all your ingredients and get everything ready.
Cooking Time
Once prepped, the cooking process will take roughly 30 minutes. This includes both microwave and oven time for that deliciously golden top!
Total Time
In total, you’re looking at around 45 minutes from start to finish. Perfect for a weeknight dinner or a casual gathering, this recipe is both quick and satisfying!
Feel free to explore more about the benefits of incorporating squash in your diet on Healthline for some valuable insights. Plus, if you’re curious about cooking techniques, check out this guide on Microwave Cooking for more tips!
Nutritional Facts for Spaghetti Squash Au Gratin
Calories per serving
Each serving of spaghetti squash au gratin contains approximately 115 calories. This makes it a fantastic option for those looking to enjoy a comforting dish without the guilt.
Key nutritional components
- Total Fat: 5g
- Saturated Fat: 2g
- Cholesterol: 10mg
- Sodium: 265mg
- Total Carbohydrate: 11g
- Dietary Fiber: 0g
- Total Sugars: 4g
- Protein: 8g
- Calcium: 170mg
Spaghetti squash is a wonderful alternative to traditional gratins, offering a low-calorie and nutrient-rich side. With its impressive calcium content and a modest amount of protein, this dish supports healthy bones and muscle function. Interested in learning more about the benefits of spaghetti squash? Check out the Nutritional Benefits of Spaghetti Squash.
As you dive into this spaghetti squash au gratin, you’re not just enjoying sumptuous flavors; you’re also making a smart choice for your health. It really does make eating your vegetables a delightful experience!
FAQs about Spaghetti Squash Au Gratin
Can I make this dish ahead of time?
Absolutely! You can prepare your spaghetti squash au gratin up to a day in advance. Just complete all the steps up until the baking portion, and then cover it tightly and refrigerate. When you’re ready to serve, allow it to come to room temperature before popping it in the oven. Bake at 375°F for about 25-30 minutes, or until heated through.
What are the best sides to pair with this au gratin?
For a delightful meal, consider serving your spaghetti squash au gratin alongside a fresh, crisp salad or some roasted vegetables. Grilled chicken or turkey bacon can add a nice protein balance as well. If you're looking for carbs, a crusty whole grain bread works wonders to soak up those delicious flavors!
How can I store leftovers?
Leftover spaghetti squash au gratin can be easily stored in an airtight container in the refrigerator for up to three days. To reheat, simply use the microwave or pop it back in the oven until warmed through. You can also freeze it for up to a month. Just make sure to let it cool completely before freezing and wrap it well to prevent freezer burn! For more tips on food storage, check out this healthy eating guide from the Academy of Nutrition and Dietetics.
Conclusion on Spaghetti Squash Au Gratin
Spaghetti squash au gratin is a delectable, hearty dish that offers a lower-calorie twist on comfort food. Packed with flavor and nutrition, it's an excellent way to incorporate more vegetables into your meals. Give it a try—you’re sure to impress your family and enjoy this healthy alternative!

Spaghetti Squash Au Gratin
Equipment
- microwave
- skillet
- baking dish
Ingredients
- 1 spaghetti squash halved and seeded
- 3 tablespoons light margarine
- 1 small yellow onion thinly sliced
- 1 teaspoon red pepper flakes
- ¼ teaspoon garlic powder
- salt to taste
- freshly ground black pepper to taste
- ¾ cup fat-free sour cream
- 1 cup shredded light Cheddar cheese
- cooking spray
Instructions
- Place spaghetti squash in a covered dish and add ¼ inch of water. Microwave for 10 to 12 minutes. Scrape insides of squash with a fork and transfer to a small bowl.
- Heat margarine in a medium skillet over medium heat while spaghetti squash is cooking and cook onion, red pepper flakes, garlic powder, salt, and pepper until the onion is browned, 5 to 10 minutes.
- Preheat the oven to 375 degrees F (190 degrees C). Grease a baking dish with nonstick cooking spray.
- Mix spaghetti squash, onion mixture, sour cream, and ½ of the Cheddar cheese together. Transfer to the prepared baking dish and top with remaining Cheddar cheese.
- Bake in the preheated oven for 20 to 25 minutes. Turn on broiler for the last 2 to 3 minutes and broil until gratin is golden brown on top.



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