This Healthy Cheesy Spaghetti Squash Au Gratin is a fun twist on a classic dish! It features tender spaghetti squash mixed with creamy cheese and a crispy topping that makes it irresistible.
Who knew healthy could taste so good? I love how light yet cheesy it feels—perfect for a cozy dinner. Plus, it’s a sneaky way to eat your veggies! 🥴
Key Ingredients & Substitutions
Spaghetti Squash: This is the star of the dish! It’s a great low-carb alternative to pasta. If you’re short on time, you can use pre-cooked or frozen spaghetti squash. However, roasting it fresh adds the best flavor and texture.
Cheese: I love using a mix of low-fat cheddar and Parmesan for richness. If you’re lactose intolerant, there are lactose-free cheeses available that melt well. Nutritional yeast is a great vegan alternative that adds cheesy flavor without dairy.
Greek Yogurt: It provides creaminess while keeping it healthy. If you’re avoiding dairy, try using cashew cream or silken tofu blended until smooth for a similar texture. You can also use regular plain yogurt if preferred.
Milk: I usually go for unsweetened almond milk. Oat milk is another great choice that adds a slightly creamier consistency. Just avoid sweetened varieties to keep the flavor balanced.
How Do I Roast Spaghetti Squash Perfectly?
Roasting spaghetti squash is simple, but timing is key! Here’s how to get it just right:
- Start by preheating your oven to 400°F (200°C).
- Cut the squash in half lengthwise and scoop out the seeds with a spoon.
- Place the halves cut-side down on a baking sheet lined with parchment paper or foil. This keeps moisture in and helps it cook evenly.
- Roast in the oven for 40-45 minutes. Check for doneness by piercing with a fork—if it goes in easily, it’s ready!
Give it a few minutes to cool, then twirl the strands out with a fork for that perfect spaghetti-like texture!
Healthy Cheesy Spaghetti Squash Au Gratin
Ingredients You’ll Need:
For the Dish:
- 1 medium spaghetti squash (about 3-4 pounds)
- 1 cup shredded low-fat cheddar cheese (or a blend of cheddar and mozzarella)
- 1/2 cup grated Parmesan cheese
- 1/2 cup plain Greek yogurt (for creaminess and health boost)
- 1/4 cup low-fat milk or unsweetened almond milk
- 2 cloves garlic, minced
- 1 small onion, finely chopped
- 1 tablespoon olive oil
- 1 teaspoon Dijon mustard (optional, for depth of flavor)
- Salt and freshly ground black pepper, to taste
- 1/4 teaspoon smoked paprika or nutmeg (optional)
- Fresh parsley, chopped (for garnish, optional)
How Much Time Will You Need?
This recipe takes about 15 minutes of prep time and around 1 hour total, including roasting the spaghetti squash. You’ll spend the first part getting everything ready, then it will bake to cheesy perfection while you relax or prepare a simple salad to go with it!
Step-by-Step Instructions:
1. Roast the Spaghetti Squash:
Preheat the oven to 400°F (200°C). Cut the spaghetti squash in half lengthwise and scoop out the seeds. Place the squash halves cut-side down on a baking sheet lined with parchment paper or foil. Roast for 40-45 minutes or until the flesh is tender and can be shredded with a fork.
2. Sauté the Onion and Garlic:
While the squash is roasting, heat olive oil in a skillet over medium heat. Add the chopped onion and cook until soft and translucent, about 5 minutes. Then, add the minced garlic and cook for another minute. Remove from heat and set aside.
3. Prepare the Spaghetti Squash:
Once the spaghetti squash is cool enough to handle, use a fork to shred the flesh into noodle-like strands and discard the skin.
4. Create the Cheese Mixture:
In a large bowl, combine the shredded squash, sautéed onion and garlic, Greek yogurt, milk, Dijon mustard (if using), smoked paprika or nutmeg (if using), half of the cheddar cheese, and Parmesan cheese. Mix well and season with salt and pepper to taste.
5. Assemble and Bake:
Transfer the mixture to a greased 8×8-inch baking dish. Sprinkle the remaining cheddar cheese evenly on top. Bake uncovered for 15-20 minutes until the cheese is melted and golden brown on top.
6. Serve and Enjoy:
Remove from the oven and let it cool for a few minutes. Garnish with fresh parsley if desired before serving. Enjoy this cozy, healthy, and cheesy take on a classic au gratin!
FAQ for Healthy Cheesy Spaghetti Squash Au Gratin
Can I Use Different Cheeses?
Absolutely! While I recommend low-fat cheddar and Parmesan, feel free to experiment with your favorite cheeses. Mozzarella, gouda, or even a spicy pepper jack can add delicious flavor. Just ensure they melt well!
How Can I Store Leftovers?
Store any leftovers in an airtight container in the fridge for up to 3 days. Reheat in the microwave or gently in the oven at 350°F (175°C) until warmed through.
Can I Make This Dish Vegan?
Yes! Substitute the Greek yogurt with a dairy-free yogurt, use plant-based cheese alternatives, and replace the milk with almond or coconut milk. You can also add nutritional yeast for that cheesy flavor without dairy.
What Are Some Serving Suggestions?
This dish pairs wonderfully with a fresh green salad or steamed veggies. It can also be served as a side dish alongside grilled chicken or fish for a complete meal. Enjoy it as a hearty vegetarian main dish as well!
