If you are searching for a cozy and flavorful dinner that merges comfort with a nutritious twist, this Cheesy Pesto Chicken Spaghetti Squash Recipe is about to become your new favorite weeknight delight. Imagine tender roasted spaghetti squash strands mingling with juicy shredded chicken, all luxuriously coated in a creamy pesto-infused sauce and topped with melty mozzarella and Parmesan cheeses. This recipe hits all the right notes with a perfect balance of fresh herbs, zesty spices, and gooey, cheesy goodness that will leave you craving more. It’s a dish that feels both indulgent and wholesome, proving that healthy eating can absolutely be delicious and satisfying without fuss.

Ingredients You’ll Need

The image shows a collection of food items arranged neatly on a white marbled surface. In the center, there is a white bowl filled with bright yellow shredded spaghetti squash. Surrounding this bowl are smaller white bowls containing different ingredients: one bowl has finely shredded mozzarella cheese, another has a white creamy substance similar to ricotta or cream cheese, a third bowl holds a mixture of dry herbs and chili flakes, and a fourth has grated Parmesan cheese. On a white plate above the central bowl, there are two cooked, plain white chicken pieces lightly seasoned with black pepper. Next to that is a small white bowl of green pesto sauce. Fresh green parsley sprigs lie next to all the bowls on the marbled surface. The photo taken with an iphone --ar 4:5 --v 7

The beauty of this Cheesy Pesto Chicken Spaghetti Squash Recipe lies in its simple yet essential ingredients, each playing a key role in building layers of flavor and texture. From the naturally sweet and slightly nutty spaghetti squash to the creamy tang of Greek yogurt, everything works together harmoniously to create a dish that’s both hearty and light.

1 spaghetti squash, roasted: The base of this dish, its tender strands mimic pasta for a low-carb alternative full of subtle flavor.

2 cups shredded cooked chicken breasts: Adds protein and a satisfying meaty texture that pairs perfectly with the veggies and cheese.
1/4 cup pesto: Brings fresh basil aroma and a burst of herby richness to every bite.
3/4 cup plain low-fat Greek yogurt: Keeps the sauce creamy and tangy while adding a boost of protein and probiotics.

1 teaspoon dried oregano: Adds a warm, slightly peppery herbal note that complements the pesto beautifully.
1/2 teaspoon red pepper flakes: Gives just the right hint of heat to lift the flavors without overwhelming.
1/2 teaspoon garlic powder: Enhances savory depth with a gentle garlic punch.

Kosher salt and fresh ground black pepper: Essential seasoning to brighten and balance the dish.
1/2 cup shredded part skim mozzarella cheese: Melts into a gooey, stretchy topping that makes this recipe irresistibly cheesy.
1/4 cup shredded Parmesan cheese: Adds a salty, nutty crust that crisps beautifully during baking.

Flat leaf parsley and extra pesto for garnish: Brings a fresh, vibrant pop of color and herbaceousness at the end.

How to Make Cheesy Pesto Chicken Spaghetti Squash Recipe

Step 1: Roast and Prepare the Spaghetti Squash

Begin by preheating your oven to 400° Fahrenheit. Carefully roast your spaghetti squash until it’s tender—this usually takes around 40 minutes. Once it’s cool enough to handle, slice it open and gently scrape the flesh with a fork to create spaghetti-like strands. This simple roasting step unlocks the squash’s natural sweetness and gives you that perfect noodle texture without any added carbs.

Step 2: Combine the Sauce and Main Ingredients

In a large bowl, mix together the pesto, Greek yogurt, half of the mozzarella and Parmesan cheeses, dried oregano, garlic powder, red pepper flakes, and seasoning with kosher salt and fresh ground black pepper to taste. Once incorporated, fold in the shredded chicken and roasted spaghetti squash strands. Stir gently so every strand and shred is coated in the creamy, herby sauce, ready to bake.

Step 3: Bake to Perfection

Transfer your delicious mixture to an oven-safe baking dish lightly sprayed with cooking spray to prevent sticking. Sprinkle the remaining mozzarella and Parmesan cheese on top to build that irresistible golden crust. Bake at 375° Fahrenheit for about 20 minutes, until the cheese is melted and bubbling, and everything is warmed through, filling your kitchen with a mouthwatering aroma.

How to Serve Cheesy Pesto Chicken Spaghetti Squash Recipe

A white rectangular baking dish with a baked cheesy casserole inside, showing about two main layers; the bottom layer is shredded yellow and white ingredients that look soft and cooked, while the top layer is melted white cheese scattered unevenly with green dollops of pesto sauce spread across the surface. The dish is sprinkled with finely chopped green herbs, adding brightness. The dish is placed on a white marbled textured surface with a light beige cloth on the right edge and a small bowl of green pesto sauce partly visible at the top left corner. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

Top your dish with a generous drizzle of extra pesto and a sprinkle of freshly chopped flat leaf parsley to add a burst of color and fresh herbal brightness. This final touch not only enhances the look but also layers in that fresh, aromatic flavor that makes this dish sing.

Side Dishes

This Cheesy Pesto Chicken Spaghetti Squash Recipe pairs beautifully with light, crisp sides like a simple mixed greens salad tossed in lemon vinaigrette or roasted vegetables such as asparagus or Brussels sprouts. The contrast of textures and fresh flavors will round out your meal perfectly without overshadowing the main event.

Creative Ways to Present

For a fun and elegant presentation, serve individual portions back inside the roasted spaghetti squash shells. This is perfect for a dinner party or family meal that feels special but remains easy to serve. You can also plate it with a sprinkle of toasted pine nuts or a little extra cheese for guests who want to indulge.

Make Ahead and Storage

Storing Leftovers

Keep any leftover Cheesy Pesto Chicken Spaghetti Squash Recipe in an airtight container in the refrigerator. It will stay fresh for up to 3 days, making it a fantastic option for quick lunches or reheated dinners that still taste amazing.

Freezing

If you want to enjoy this dish later, you can freeze it in a freezer-safe container. For best results, freeze before baking and thaw in the refrigerator overnight. Once thawed, bake as directed. This keeps the texture and flavors intact without compromising the cheesy, creamy goodness.

Reheating

Reheat leftovers gently in the oven at 350° Fahrenheit until warmed through to help maintain that delicious texture and melty cheese. You can also microwave individual portions covered with a microwave-safe lid or plate, stirring once or twice for even heating. Just avoid overheating, which can make the squash watery.

FAQs

Can I use store-bought pesto for this recipe?

Absolutely! Store-bought pesto works wonderfully here and saves time, but if you have fresh basil and pine nuts, homemade pesto will elevate the dish even more with vibrant flavor.

Is it necessary to use Greek yogurt?

Greek yogurt adds creamy texture and a slight tang while keeping things light. You can substitute with sour cream or cream cheese, but Greek yogurt is a healthier choice with added protein.

What if I don’t have chicken breast? Can I use another protein?

Certainly! Cooked turkey, rotisserie chicken, or even sautéed shrimp would work well. The key is using a mild, cooked protein that complements the pesto without overpowering it.

How can I tell when the spaghetti squash is perfectly roasted?

When the skin is browned and a fork easily pierces through the flesh and scrapes out strands effortlessly, it’s done. Avoid overcooking to keep strands from becoming mushy.

Is this recipe low carb or keto-friendly?

Yes, spaghetti squash is a fantastic low-carb alternative to pasta, and combined with chicken and cheese, this dish fits well into many low-carb or keto diets, especially when using low-fat yogurt and moderate cheese portions.

Final Thoughts

There’s something so comforting and satisfying about this Cheesy Pesto Chicken Spaghetti Squash Recipe that makes it a go-to for busy evenings when you want a delicious, wholesome meal with minimal fuss. It’s versatile, packed with flavor, and a wonderful way to enjoy healthy ingredients without sacrificing any of the joys of cheesy, creamy comfort food. I truly hope you give it a try and discover how effortlessly it becomes a beloved staple in your recipe rotation, bringing smiles and full bellies to your table.

Cheesy Pesto Chicken Spaghetti Squash Recipe

Ingredients You’ll Need

How to Make Cheesy Pesto Chicken Spaghetti Squash Recipe

Step 1: Roast and Prepare the Spaghetti Squash