Name: Chicken Alfredo Stuffed Spaghetti Squash Recipe
Prep time: 20 min
Cook time: 1 h 7 min
Total time: 1 h 27 min
Cuisine: Italian-American
Ingredients: 1 medium spaghetti squash (about 3-3.5 lbs); 1 1/4 pounds chicken breasts; 2-3 cups chopped broccoli; 2 Tablespoons avocado oil (divided); 1 1/2 teaspoons Italian seasoning (for chicken); 1 1/2 teaspoons salt (divided); 4 teaspoons minced garlic; 2 1/2 teaspoons Italian seasoning (for sauce); 1/2 teaspoon salt (for sauce); 1/2 teaspoon pepper; 2/3 cup cottage cheese; 3 Tablespoons milk; 3-4 Tablespoons broth (chicken or vegetable); 3 Tablespoons butter; 2/3 cup grated Parmesan cheese; 2 Tablespoons chopped chives; More Parmesan (optional, to taste)

Jump to Recipe· 4.3 from 50 reviews

If you’re ready for a delightful, cozy meal that feels indulgent but is surprisingly wholesome, then you absolutely must try this Chicken Alfredo Stuffed Spaghetti Squash Recipe. It’s the perfect marriage of tender chicken, creamy Alfredo sauce, and the naturally noodle-like strands of roasted spaghetti squash that soak up every bit of that rich flavor. This dish not only satisfies your comfort food cravings but adds a nutritious twist that will have you coming back to the kitchen with a big smile every time.

Ingredients You’ll Need

A light gray baking sheet holds two large raw chicken pieces at the top right corner, each coated with a brown spice mix, creating a textured layer on the pale chicken skin. Below the chicken, on the left side of the sheet, a generous pile of fresh broccoli florets spreads out, their vibrant green color contrasting with the smooth gray surface. The broccoli pieces vary in size, showing detailed bumpy textures on the crown and crisp smooth stems. The overall look is clean and fresh on a white marbled textured surface. Photo taken with an iphone --ar 4:5 --v 7

These ingredients are simple, straightforward, and each one plays a crucial role in turning this dish into a comforting masterpiece. From the hearty chicken to the fresh broccoli and creamy Parmesan, every element balances perfectly.

Spaghetti squash (about 3-3.5 lbs): The star vegetable, naturally low-carb with strands that mimic pasta texture beautifully.
Chicken breasts (1 1/4 pounds): Provides juicy protein and a mild flavor that pairs well with creamy sauce.
Avocado oil (2 Tablespoons, divided): Ideal for roasting—adds a subtle, healthy fat without overpowering the other ingredients.
Italian seasoning (1 1/2 teaspoons + 2 1/2 teaspoons): Brings warmth and herbaceous notes to the chicken and sauce.
Broccoli (2-3 cups, chopped): Adds a fresh crunch and vibrant green color, making the plate more inviting.
Salt (1 1/2 teaspoons + 1/2 teaspoon): Essential to enhance all the flavors throughout the dish.
Cottage cheese (2/3 cup): Key to making the Alfredo sauce creamy yet light, a great substitute for heavier creams.
Milk (3 Tablespoons): Helps smooth the sauce consistency for that luxurious feel.
Broth (3-4 Tablespoons, chicken or vegetable): Adds depth and a savory base to the sauce.
Minced garlic (4 teaspoons): Infuses the dish with aromatic, savory goodness.
Pepper (1/2 teaspoon): Adds just a slight kick to balance the richness.
Butter (3 Tablespoons): A classic ingredient that rounds out the sauce with silky texture.
Grated Parmesan (2/3 cup plus extra): Delivers that nutty, sharp flavor that defines Alfredo sauce.
Chopped chives (2 Tablespoons): Gives a fresh herbal finish and a pop of color on top.

How to Make Chicken Alfredo Stuffed Spaghetti Squash Recipe

Step 1: Preheat and Prep the Squash

Start by heating your oven up to 425 degrees Fahrenheit. Then carefully slice your spaghetti squash in half lengthwise and scoop out those little seeds—this creates the perfect “boats” for stuffing. Place these halves face down in a baking dish with a shallow water layer to help steam the squash as it roasts, softening the strands for that perfect al dente texture later on.

Step 2: Roast the Squash

Pop the squash in the oven for about 10 minutes to begin softening. This step gets you going while you prep the other parts of the dish, and it’s the first step toward those tender, tasty strands of “pasta” that make this Chicken Alfredo Stuffed Spaghetti Squash Recipe so unique.

Step 3: Season the Chicken and Broccoli

While the squash roasts, coat the chicken breasts in half the avocado oil and Italian seasoning to lock in flavor and juiciness. On the other side of the baking sheet, toss the broccoli with the remaining oil and a pinch of salt so it crisps beautifully while roasting. These simple steps add layers of flavor and texture to the dish.

Step 4: Bake Chicken, Broccoli, and Squash Together

Place the baking sheet with chicken and broccoli on another oven rack and continue roasting everything together for 35-40 minutes. This method ensures the chicken cooks through while the broccoli turns tender with a little bite, and the squash becomes perfectly soft for shredding.

Step 5: Blend and Simmer the Alfredo Sauce

While the proteins and veggies roast, blend the cottage cheese, milk, broth, minced garlic, Italian seasoning, salt, and pepper until smooth. Then melt butter in a pan, stir in the sauce blend, and let it gently simmer on medium-high for about 5-7 minutes so it thickens just right. Finishing with Parmesan cheese adds that classic Alfredo richness you crave.

Step 6: Assemble the Stuffed Squash

Once everything is cooked, shred the chicken into small pieces and use a fork to pull spaghetti-like strands from the roasted squash. Mix the chicken into each squash half and generously pour the creamy sauce over the top. Sprinkle with extra Parmesan before putting back in the oven to melt and heat through.

Step 7: Final Bake to Melt Cheese

Turn the oven temperature down to 350 degrees Fahrenheit and bake the assembled squash for another 10 minutes. This final baking step melds all the flavors and creates a lovely melted cheese crust that makes this Chicken Alfredo Stuffed Spaghetti Squash Recipe absolutely irresistible.

How to Serve Chicken Alfredo Stuffed Spaghetti Squash Recipe

A halved yellow spaghetti squash filled with four layers: the first layer is bright yellow spaghetti squash strands forming the base, the second layer includes small roasted green broccoli pieces with slightly charred edges, the third layer is a creamy white sauce covering the vegetables, and the top layer consists of browned chicken chunks sprinkled with fresh green chopped herbs. The squash sits on a white plate with some green herb bits scattered around, all placed on a white marbled surface. photo taken with an iphone --ar 4:5 --v 7

Garnishes

Fresh herbs like chopped chives or parsley add a burst of color and a gentle herbal note that brightens the rich Alfredo sauce perfectly. You can also sprinkle a little extra Parmesan on top before serving if you love cheesiness!

Side Dishes

This stuffed spaghetti squash is quite a satisfying meal on its own but pairs wonderfully with a crisp green salad or some garlic bread for scooping up any extra sauce. Roasted vegetables like asparagus or carrots also complement it beautifully, adding more texture and fresh flavors.

Creative Ways to Present

Serve each half of the spaghetti squash as its own “bowl” for charming presentation, or scoop the filling onto individual plates for a more casual dinner. For entertaining, portion the filling into mini baked squash halves or even use small ramekins to create personal-sized servings that impress without fuss.

Make Ahead and Storage

Storing Leftovers

Place leftover stuffed spaghetti squash in airtight containers and keep refrigerated for up to 3 days. This dish holds up incredibly well and retains its creamy texture, making it ideal for easy lunches or quick dinners later in the week.

Freezing

You can freeze this recipe for longer storage by wrapping each stuffed squash half tightly in foil and then placing them in a freezer-safe bag. Freeze for up to 2 months. Thaw overnight in the fridge before reheating to enjoy that homemade goodness anytime.

Reheating

Reheat leftovers gently in the oven at 350 degrees Fahrenheit until warmed through, typically 15-20 minutes, to avoid drying out the chicken or sauce. Alternatively, use a microwave for a quicker method but cover to keep moisture locked in.

FAQs

Can I use pre-cooked chicken for this Chicken Alfredo Stuffed Spaghetti Squash Recipe?

Absolutely! Pre-cooked chicken can save you time. Just skip the initial roasting step for the chicken and add it when assembling before the final bake to meld the flavors.

Is spaghetti squash hard to prepare?

Not at all! Though cutting it requires a bit of care because of its tough skin, once roasted, the strands are easy to pull apart with a fork, making it an effortless pasta substitute.

Can I make the Alfredo sauce dairy-free?

Yes, you can swap cottage cheese for a plant-based cream or cashew cream and use dairy-free butter and Parmesan substitutes to keep the same creamy consistency and flavor without dairy.

What can I substitute for broccoli if I’m not a fan?

Feel free to swap broccoli for other veggies like spinach, zucchini, or mushrooms. They’ll provide different textures and flavors but still complement the chicken Alfredo beautifully.

How can I make this recipe spicier?

Add a pinch of red pepper flakes to the Alfredo sauce or sprinkle some cayenne pepper onto the chicken before roasting. This will bring a gentle kick and exciting warmth to the dish.

Final Thoughts

This Chicken Alfredo Stuffed Spaghetti Squash Recipe is truly a winner for anyone wanting comforting, creamy flavors with a nutritious twist. It’s approachable to make, adaptable to your tastes, and simply satisfying to eat. I can’t wait for you to try it and see how this recipe becomes one of your go-to favorites for a hearty, healthy meal that feels specially made just for you.