Description
Cheesy Spaghetti Squash Gratin is a comforting, low-carb side dish made with tender roasted spaghetti squash, a creamy cheese sauce, and a golden, bubbly top. It’s a delicious way to enjoy vegetables with a rich, savory twist.
Ingredients
Scale
- 1 medium spaghetti squash
- 1 tablespoon olive oil
- 2 tablespoons butter
- 2 cloves garlic, minced
- 1/2 cup chopped onion
- 1/4 cup all-purpose flour
- 1 cup milk
- 1/2 cup heavy cream
- 1 cup shredded cheddar cheese
- 1/2 cup grated Parmesan cheese
- Salt and pepper to taste
- 1/4 teaspoon ground nutmeg (optional)
- 1/4 cup breadcrumbs (optional, for topping)
Instructions
- Preheat oven to 400°F (200°C). Cut the spaghetti squash in half lengthwise and scoop out the seeds.
- Brush the inside of the squash with olive oil, place cut-side down on a baking sheet, and roast for 35–40 minutes, or until tender.
- Let squash cool slightly, then use a fork to scrape out the strands and set aside.
- In a saucepan over medium heat, melt the butter. Add garlic and onion, sauté until soft, about 3-4 minutes.
- Stir in flour and cook for 1 minute. Gradually whisk in milk and cream. Bring to a simmer and cook until thickened, about 3–5 minutes.
- Stir in cheddar, half the Parmesan, salt, pepper, and nutmeg. Cook until cheese is melted and smooth.
- Fold in the spaghetti squash strands until evenly coated with sauce.
- Transfer to a greased baking dish. Top with remaining Parmesan and breadcrumbs if using.
- Bake for 15–20 minutes, or until bubbly and golden on top. Serve warm.
Notes
- You can use a mix of cheeses like Gruyère or mozzarella for more flavor depth.
- Skip the breadcrumbs for a gluten-free version, or use gluten-free crumbs.
- This dish can be made ahead and baked just before serving.
Nutrition
- Serving Size: 1/6 of recipe
- Calories: 220
- Sugar: 5g
- Sodium: 290mg
- Fat: 14g
- Saturated Fat: 8g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 15g
- Fiber: 2g
- Protein: 9g
- Cholesterol: 40mg
Keywords: spaghetti squash gratin, cheesy squash casserole, low-carb side dish, vegetarian gratin, baked spaghetti squash