If you’ve been hunting for an indulgent and waistline-friendly cozy dish, this Creamy Spaghetti Squash Au Gratin might just become your go-to. It’s everything you love about a cheesy casserole—creamy, savory, and comforting—but with a clever veggie twist that keeps things light.
This recipe is perfect for weeknights when you need a little comfort food or as a standout side at your next family gathering. It hits that magical sweet spot between healthy and hearty.
Why You’ll Love This Creamy Spaghetti Squash Au Gratin
It is a clever way to sneak in more veggies and satisfies that creamy, cheesy craving without going overboard on carbs. It’s the baked spaghetti squash dream dish you didn’t know you needed. Bonus: it’s gluten-free and kid-approved.
Ingredients
- 3 cups cooked spaghetti squash, strands separated
- 2 large eggs
- 1 cup shredded mozzarella
- ½ cup plain Greek yogurt
- 2 tbsp minced garlic
- ½ tsp dried thyme
- Salt and pepper to taste
- ½ cup grated Parmesan cheese
How to Make This Cheesy Casserole
- Preheat your oven to 400°F.
- In a large bowl, mix the cooled spaghetti squash strands with eggs, mozzarella, yogurt, garlic, thyme, salt, and pepper. Stir until everything is evenly combined.
- Transfer the mixture into a greased medium-sized baking dish and spread it out evenly.
- Sprinkle Parmesan over the top for that irresistible crust.
- Bake for 30 to 40 minutes, or until bubbly and golden on top.
- Let it rest for 5–10 minutes before slicing—this helps it hold together beautifully.
Tips for Perfect Baked Spaghetti Squash
- Roast your spaghetti squash ahead of time to make this a breeze on busy nights.
- Be sure your squash is fully cooled before mixing with eggs—no one wants scrambled egg casserole.
- For extra flair, sprinkle in a little smoked paprika or swap mozzarella for gouda.
- Want more texture? Add sautéed mushrooms or spinach to the mix.
Olivia’s Table Talk
This dish was born out of necessity—specifically, the moment I realized I had a spaghetti squash and zero desire to cook anything complicated. What began as a “throw everything in a bowl” dinner turned into a weeknight favorite. My husband requests it on repeat, and even my picky youngest calls it “the cheesy veggie pie.” Success!
What to Serve with Creamy Spaghetti Squash Au Gratin
It’s incredibly versatile! Serve it alongside grilled chicken, baked salmon, or a hearty lentil stew. For a lighter dinner, pair it with a crisp green salad or roasted Brussels sprouts. Or just dig in solo with a glass of chilled white wine—you earned it.
How to Store This Low-Carb Side Dish
Leftovers? Lucky you. Store the cooled casserole in an airtight container in the fridge for up to 4 days. It reheats beautifully in the microwave or oven. Want to make it ahead? Assemble everything (minus the Parmesan), cover, and refrigerate. Add cheese just before baking for fresh flavor and texture.
FAQs
Can I use frozen spaghetti squash?
Yes, just thaw and drain thoroughly to avoid excess moisture.
Is there a dairy-free version?
You can try using dairy-free yogurt and cheese alternatives. Flavor will vary slightly, but it still works well.
Can I make this ahead of time?
Absolutely—assemble and refrigerate up to 24 hours ahead. Just bake when ready.
Can I freeze leftovers?
Sure! Portion into slices, wrap well, and freeze for up to 2 months. Reheat in the oven for best results.
Cheesy, Creamy, and Comforting—Minus the Guilt
There’s something magical about turning humble ingredients into something crave-worthy. This Creamy Spaghetti Squash Au Gratin is your ticket to low-carb comfort that doesn’t skimp on flavor or satisfaction. Whether you’re sneaking in more veggies or just feeding your family something delicious, this one’s a keeper.
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Creamy Spaghetti Squash Au Gratin: A Comforting Low-Carb Side That Wins Every Time
- Total Time: 50 minutes
- Yield: 6 servings 1x
- Diet: Gluten Free
Description
Creamy spaghetti squash au gratin is a cozy, low-carb side dish that combines tender squash strands with creamy Greek yogurt, mozzarella, and garlic, all baked to golden, cheesy perfection. It’s gluten-free, satisfying, and easy enough for busy weeknights yet elegant enough for entertaining.
Ingredients
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3 cups cooked spaghetti squash, strands separated
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2 large eggs
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1 cup shredded mozzarella
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½ cup plain Greek yogurt
-
2 tbsp minced garlic
-
½ tsp dried thyme
-
Salt and pepper to taste
-
½ cup grated Parmesan cheese
Instructions
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Preheat oven to 400°F (200°C).
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In a large mixing bowl, combine cooled spaghetti squash strands, eggs, mozzarella, yogurt, garlic, thyme, salt, and pepper. Mix thoroughly.
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Grease a medium baking dish and pour in the mixture, spreading it evenly.
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Sprinkle Parmesan cheese evenly over the top.
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Bake for 30–40 minutes, until bubbly and golden brown.
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Let rest 5–10 minutes before slicing and serving.
Notes
Let squash cool fully before mixing to prevent scrambling the eggs.
For added flavor, mix in smoked paprika or substitute gouda for mozzarella.
Add sautéed mushrooms, onions, or spinach for extra texture and nutrients.
Can be assembled in advance and baked later—just wait to add Parmesan before baking.
Stores well and reheats beautifully for leftovers or meal prep.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Category: Side Dish
- Method: Baking
- Cuisine: American