Cheesy Spaghetti Squash Gratin is a creamy, comforting side dish with roasted squash, melty cheddar, and golden Parmesan, perfect for low-carb comfort food lovers!
Why You’ll Love This Recipe
Cheesy Spaghetti Squash Gratin is everything you love about a classic gratin but lighter and lower in carbs. It features naturally sweet roasted spaghetti squash tossed with a creamy, cheesy sauce and baked to bubbly perfection. Easy to prepare and versatile, this dish works beautifully as a hearty side or even a satisfying vegetarian main course.
Ingredients
- 1 medium spaghetti squash
- 2 tablespoons butter
- 1 small onion, finely chopped
- 2 cloves garlic, minced
- 1/2 cup sour cream
- 1 cup shredded cheddar cheese, divided
- 1/4 teaspoon salt
- 1/4 teaspoon black pepper
- 1/4 teaspoon paprika
- 2 tablespoons grated Parmesan cheese
Directions
- Preheat oven to 375°F (190°C).
- Carefully cut the spaghetti squash in half lengthwise and scoop out the seeds.
- Place squash halves cut side down on a baking sheet and roast for 35-40 minutes, or until tender.
- Let cool slightly, then use a fork to scrape the squash flesh into strands and transfer to a large bowl.
- In a skillet, melt butter over medium heat. Add onion and garlic, sautéing until softened.
- Stir the sautéed onion and garlic into the spaghetti squash.
- Mix in sour cream, half of the cheddar cheese, salt, pepper, and paprika until well combined.
- Transfer the mixture to a greased baking dish.
- Top with the remaining cheddar cheese and sprinkle with Parmesan.
- Bake for 20-25 minutes, or until the cheese is melted and golden brown.
- Serve warm and enjoy.
Servings and Timing
- Prep Time: 15 minutes
- Cooking Time: 1 hour
- Total Time: 1 hour 15 minutes
- Servings: 6 servings
- Calories: 290 kcal per serving
Variations
- Extra Cheesy: Add mozzarella or Gruyère cheese for an even richer flavor.
- Spicy Kick: Mix in a pinch of cayenne pepper or chopped jalapeños for heat.
- Herb Infusion: Stir in fresh chopped herbs like thyme, parsley, or basil for added freshness.
- Protein Boost: Add cooked chicken or turkey for a heartier meal.
- Low-Fat Option: Use light sour cream and reduced-fat cheese to cut down on calories.
Storage/Reheating
Store leftovers in an airtight container in the refrigerator for up to 4 days. To reheat, place in a 350°F (175°C) oven until warmed through, or microwave individual portions for 1-2 minutes. For best results, reheat in the oven to maintain the texture of the cheese topping. Freezing is not recommended, as the squash can become watery upon thawing.
FAQs
Can I use frozen spaghetti squash?
Yes, just make sure it’s fully thawed and drained of any excess moisture before using.
What kind of cheese works best for this recipe?
Cheddar is classic, but Gruyère, fontina, or Monterey Jack would all be delicious.
Can I make this dish ahead of time?
Yes, assemble it up to a day ahead, cover, refrigerate, and bake just before serving.
How do I know when the squash is done roasting?
It’s ready when you can easily scrape the flesh into spaghetti-like strands with a fork.
Can I make it dairy-free?
Yes, use plant-based butter, sour cream, and cheeses as alternatives.
Is this recipe keto-friendly?
Absolutely — it’s low in carbs and high in fat, perfect for a keto diet.
Can I add other vegetables?
Sure, sautéed spinach, mushrooms, or bell peppers would be great additions.
Can I substitute the sour cream?
Yes, plain Greek yogurt makes a good substitute for sour cream.
What’s the best way to cut a spaghetti squash?
Microwave it for a few minutes first to soften slightly, making it easier and safer to cut.
What should I serve with cheesy spaghetti squash gratin?
It pairs well with grilled meats, roasted chicken, or a fresh green salad.
Conclusion
Cheesy Spaghetti Squash Gratin is a deliciously cozy and versatile dish that brings together the sweetness of roasted squash and the richness of melted cheese into one irresistible bite. Whether you’re looking for a hearty side dish or a lighter, satisfying main, this gratin delivers comfort, flavor, and a bit of indulgence without the carbs. Serve it at your next family dinner or holiday gathering for guaranteed smiles!
Print
Cheesy Spaghetti Squash Gratin
- Total Time: 1 hour 15 minutes
- Yield: 6 servings 1x
- Diet: Vegetarian
Description
Cheesy Spaghetti Squash Gratin is a creamy, comforting side dish with roasted squash, melty cheddar, and golden Parmesan, perfect for low-carb comfort food lovers!
Ingredients
1 medium spaghetti squash
2 tablespoons butter
1 small onion, finely chopped
2 cloves garlic, minced
1/2 cup sour cream
1 cup shredded cheddar cheese, divided
1/4 teaspoon salt
1/4 teaspoon black pepper
1/4 teaspoon paprika
2 tablespoons grated Parmesan cheese
Instructions
Preheat oven to 375°F (190°C).
Cut spaghetti squash in half, remove seeds.
Place halves cut side down on a baking sheet; roast for 35-40 minutes until tender.
Let squash cool slightly; scrape flesh into strands.
In a skillet, melt butter and sauté onion and garlic until softened.
Stir onion and garlic into spaghetti squash strands.
Mix in sour cream, half the cheddar cheese, salt, pepper, and paprika.
Transfer to a greased baking dish.
Top with remaining cheddar cheese and Parmesan.
Bake 20–25 minutes until golden and bubbling.
Serve warm.
Notes
- For extra richness, stir in a few tablespoons of cream cheese or heavy cream.
- Try using a blend of cheeses like Gruyère or Fontina for a gourmet twist.
- Prep Time: 15 minutes
- Cook Time: 1 hour
- Category: Side Dish
- Method: Baking
- Cuisine: American