If you’re searching for a wholesome dish that feels indulgent but is packed with vibrant flavors, the Chicken Parmesan Stuffed Spaghetti Squash Recipe is calling your name. This recipe takes the beloved classic chicken parmesan flavors and pairs them with the naturally low-carb, tender strands of roasted spaghetti squash, creating a dish that’s both comforting and exciting. Each forkful delivers a perfect balance of savory chicken, rich marinara, melty cheeses, and fresh herbs that make it a guaranteed crowd-pleaser. Plus, it’s a fantastic way to sneak in veggies while satisfying that cheesy Italian food craving.

Ingredients You’ll Need
Gathering these simple yet essential ingredients is the first step to achieving this hearty and colorful dish. Each component plays a key role, from the nutty roasted spaghetti squash threads that replace traditional pasta to the melty mozzarella that brings that irresistible creaminess.
- Spaghetti squash: The star vegetable that “spaghetti-fies” when cooked, offering a light and slightly sweet base.
- Extra-virgin olive oil: Adds richness and helps roast the squash perfectly golden.
- Salt and black pepper: Basic seasonings to enhance every flavor in the dish.
- Yellow onion: Provides a gentle sweetness and depth to the sauce.
- Cherry tomatoes: Burst with juiciness, adding fresh bright notes.
- Garlic cloves: Deliver that aromatic punch essential to Italian cooking.
- Rotisserie or cooked chicken breast: The protein that keeps this dish filling and flavorful.
- Marinara sauce: The rich tomato base that ties the filling together with herbs and spices.
- Chicken broth: Adds moisture and a little savory depth without overwhelming the sauce.
- Fresh baby spinach: Incorporates a lovely green freshness and subtle earthiness.
- Fresh basil: Grounded in classic Italian flavor, brightening the dish.
- Parmesan cheese: Brings that nutty, salty layer of umami.
- Mozzarella cheese: Melts beautifully for that gooey, irresistible finish.
- Chopped basil or parsley: For a fresh herbal garnish that adds color and fragrance.
How to Make Chicken Parmesan Stuffed Spaghetti Squash Recipe
Step 1: Prepare the Spaghetti Squash
Start by preheating your oven to 400°F. Cut each spaghetti squash in half lengthwise and scoop out the seeds—this is your inviting vessel for all the delicious filling. Drizzle each half with olive oil, and season generously with salt and pepper. Placing the squash cut side down on a baking sheet helps the flesh roast evenly and develop those signature noodle-like strands. Bake for 35 to 45 minutes until tender when pierced with a fork.
Step 2: Make the Flavorful Filling
While the squash is roasting, let’s get the filling going on the stovetop. Heat a tablespoon of extra-virgin olive oil in a large skillet and sauté the finely chopped onion until translucent, waking up the base flavors. Add halved cherry tomatoes and minced garlic, letting them soften and mingle their aromas. Toss in your shredded rotisserie chicken or chopped cooked chicken breast, stirring to combine. Pour in the marinara sauce along with chicken broth, then add chopped baby spinach, fresh basil, grated Parmesan, and a good handful of shredded mozzarella. Let this beautiful melange simmer gently so all the flavors marry while your squash finishes roasting.
Step 3: Assemble the Stuffed Squash
Once your spaghetti squash is roasted and cool enough to handle, use a fork to scrape out the tender flesh into strands, mixing these into your savory chicken and sauce mixture right in the pan. Fill each squash half with this hearty filling and sprinkle the tops liberally with remaining shredded mozzarella. Pop them under the broiler for a few minutes until the cheese turns bubbling, golden, and irresistibly melty—keep a close eye so they don’t burn!
Step 4: Garnish and Serve
Finish off your masterpiece by garnishing with freshly chopped basil or parsley, plus a little extra grated Parmesan if you like. Let the stuffed squash cool for a few moments before serving—it helps the filling settle and become even more luscious with every bite.
How to Serve Chicken Parmesan Stuffed Spaghetti Squash Recipe

Garnishes
Adding fresh herbs like basil or parsley on top not only brightens the palette visually but also elevates the flavor with fresh, aromatic notes. A light sprinkle of extra Parmesan on top adds a lovely salty finish that guests will appreciate.
Side Dishes
Complement this dish with a crisp green salad or roasted vegetables for an extra boost of veggies and crunch. Garlic bread or a light focaccia can work well if you want a touch of carb alongside your naturally gluten-free main. Keep sides simple to let the Chicken Parmesan Stuffed Spaghetti Squash Recipe shine.
Creative Ways to Present
You can serve the stuffed squash halves directly on rustic wooden boards for a charming family-style feel or plate each half with a drizzle of balsamic reduction around for a restaurant-quality touch. For a fun twist, scoop the filling into mini squash shells and serve as elegant appetizers or party bites.
Make Ahead and Storage
Storing Leftovers
If you have any leftovers of this Chicken Parmesan Stuffed Spaghetti Squash Recipe, store them in airtight containers in the refrigerator. They will keep well for up to 3 days, giving you ready-to-eat meals that warm up beautifully without losing any of their flavor or texture.
Freezing
This recipe freezes nicely, too! Place portions in freezer-safe containers or heavy-duty zip-top bags and freeze for up to 2 months. When ready to enjoy, thaw overnight in the fridge for best results before reheating gently.
Reheating
The best way to reheat your stuffed spaghetti squash is in the oven at 350°F for about 15-20 minutes, which helps maintain that melty, tender texture. You can also microwave it on medium power, but be cautious not to dry it out—covering with a damp paper towel can help keep moisture.
FAQs
Can I use fresh chicken instead of rotisserie?
Absolutely! You can cook fresh chicken breasts, chop them into bite-size pieces, and use them in the recipe. Just make sure the chicken is fully cooked before adding it to the sauce to ensure safety and optimal flavor.
Is this recipe gluten-free?
Yes, the Chicken Parmesan Stuffed Spaghetti Squash Recipe is naturally gluten-free since it swaps traditional pasta for spaghetti squash. Just double-check your marinara sauce ingredients to be sure there are no hidden gluten additives.
Can I make this recipe vegetarian?
To make a vegetarian version, omit the chicken and increase the vegetables like mushrooms, zucchini, or eggplant. Using hearty veggie-based protein substitutes can also work well to keep the filling satisfying.
Can I prepare this dish ahead for meal prep?
Definitely! You can prepare the filling and roast the squash in advance, then assemble and broil right before serving. This saves time on busy days while offering a freshly melted cheesy topping that tastes amazing.
What’s the best way to season the spaghetti squash?
Keep it simple with good quality olive oil, salt, and black pepper before roasting. This enhances the natural sweetness of the squash and ensures the strands are flavorful once combined with the filling.
Final Thoughts
You really can’t go wrong with the Chicken Parmesan Stuffed Spaghetti Squash Recipe—this dish has become such a favorite for its comforting yet healthy vibe, easy preparation, and undeniable flavor magic. Whether you’re cooking for family, friends, or indulging in a cozy night in, give this recipe a go. I promise it will become one of those meals you reach for again and again when you want something that feels special but is surprisingly simple to make.
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Chicken Parmesan Stuffed Spaghetti Squash Recipe
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Total Time: 1 hour
- Yield: 4 servings
- Category: Main Course
- Method: Baking
- Cuisine: Italian-American
- Diet: Low Fat
Description
This Chicken Parmesan Stuffed Spaghetti Squash is a healthy and delicious low-carb twist on classic chicken parmesan. Roasted spaghetti squash halves are filled with a savory mixture of shredded chicken, marinara sauce, sautéed vegetables, fresh herbs, and cheese, then broiled to golden perfection. It’s a complete meal that’s easy to prepare, packed with flavor, and perfect for weeknight dinners.
Ingredients
Spaghetti Squash
- 2 small spaghetti squash
- 1 tablespoon + 2 teaspoon extra-virgin olive oil, divided
- 1 teaspoon salt, more to taste
- 1 teaspoon black pepper
Filling
- 1 small yellow onion, finely chopped
- 10 – 15 cherry tomatoes, halved
- 4 – 5 large garlic cloves, minced
- 2 cups shredded rotisserie chicken breast or 2 large chicken breasts, chopped into bite-size pieces
- 3 cups marinara sauce
- ½ cup low-sodium chicken broth
- 1 cup fresh baby spinach, chopped
- ¼ cup fresh basil, roughly chopped
- ¼ cup fresh parmesan, grated
- 1 cup shredded mozzarella cheese
Garnish
- Chopped fresh basil or parsley
- Additional grated parmesan cheese
Instructions
- Prepare the Spaghetti Squash: Preheat your oven to 400°F (204°C). Cut each spaghetti squash in half lengthwise and carefully scoop out the seeds. Drizzle the cut sides with 1 tablespoon of olive oil and season with salt and black pepper. Place the squash halves cut side down on a baking sheet and roast for 35-45 minutes, or until the flesh is tender and easily scraped with a fork to create spaghetti-like strands.
- Prepare the Filling: While the squash roasts, heat 2 teaspoons of olive oil in a large skillet over medium heat. Add the finely chopped onion, halved cherry tomatoes, and minced garlic. Sauté for about 5-7 minutes until the onions are translucent and the tomatoes are softened. Stir in the shredded chicken, marinara sauce, and low-sodium chicken broth. Add the chopped spinach, fresh basil, grated parmesan, and mozzarella cheese to the skillet. Simmer the mixture gently, stirring occasionally, until the squash is ready.
- Assemble: Once the squash is cooked and cool enough to handle, use a fork to scrape the flesh into strands directly in the squash halves, mixing it gently with the sauce in the skillet. Fill each squash half generously with the chicken and sauce mixture. Sprinkle additional mozzarella cheese on top of each filled squash half.
- Broil: Place the filled squash halves on a baking sheet and set the oven to broil. Broil for 3-5 minutes, watching closely, until the cheese on top is melted and golden brown.
- Serve: Remove from the oven and garnish with chopped fresh basil or parsley and additional grated parmesan cheese. Let the stuffed squash cool slightly before serving to allow the flavors to meld.
Notes
- You can substitute shredded rotisserie chicken with cooked chicken breasts for a fresher homemade option.
- Adjust the seasoning to taste, especially salt and pepper, after combining the filling.
- Broil carefully as cheese can burn quickly; keep an eye during the last step.
- Leftovers keep well refrigerated for up to 3 days and can be reheated in the oven or microwave.

