If you’re on the lookout for a dish that feels like a warm hug on a chilly evening, you must try the Cheesy Pesto Chicken Spaghetti Squash for Cozy Nights Recipe. This dish effortlessly combines tender roasted spaghetti squash strands with juicy, shredded chicken, all bathed in a vibrant pesto and creamy Greek yogurt sauce. Layered with melty mozzarella and nutty parmesan cheese, it’s bursting with flavor and texture, making it a perfect comfort meal that feels both indulgent and wholesome.

Ingredients You’ll Need
The beauty of this recipe lies in its simple, accessible ingredients that each play a crucial role in creating a dish full of flavor and comfort. Every item brings something special to the plate—from the light and hearty base of spaghetti squash to the rich, cheesy topping that brings it all together.
- 1 medium Spaghetti Squash: This vegetable serves as a low-carb base and adds a beautifully delicate texture.
- 2 cups Shredded Cooked Chicken Breasts: Perfect for using leftover chicken, bringing savory protein to the mix.
- 1 cup Pesto: Adds a burst of fresh, herby flavor that lifts the entire dish.
- 1/2 cup Plain Low-Fat Greek Yogurt: A creamy element that lightens the richness while adding tang.
- 1 teaspoon Dried Oregano: Infuses an earthy, aromatic layer of flavor.
- 1/2 teaspoon Red Pepper Flakes: Just the right hint of heat to keep your taste buds intrigued.
- 1 teaspoon Garlic Powder: Delivers a warm, savory undertone.
- 1 teaspoon Kosher Salt: Essential for bringing all the flavors into balance—adjust to your liking.
- 1/2 teaspoon Fresh Ground Black Pepper: Adds a subtle kick of spice.
- 1 cup Shredded Part Skim Mozzarella Cheese: Melts beautifully and creates that irresistible gooeyness.
- 1/2 cup Shredded Parmesan Cheese: Introduces a nutty, sharp contrast that complements the pesto.
- 2 tablespoons Flat Leaf Parsley: Adds a bright pop of color and a fresh finish.
- 2 tablespoons Extra Pesto: For drizzling on top and enhancing the overall herbaceous goodness.
How to Make Cheesy Pesto Chicken Spaghetti Squash for Cozy Nights Recipe
Step 1: Roast the Spaghetti Squash
Start by preheating your oven to 400°F to get it nice and hot. Slice your spaghetti squash in half lengthwise and scoop out the seeds—don’t throw those away just yet, you can roast them later as a crunchy snack. Place each half cut-side down on a baking sheet and roast for 30 to 35 minutes until the flesh becomes tender. Once out of the oven, let it cool just enough so you can easily scoop out the spaghetti-like strands with a fork. This step forms the delicious, low-carb base of your dish, naturally mild and perfect for soaking up all the pesto and cheese flavors.
Step 2: Mix the Ingredients
Grab a large bowl and blend together the pesto, Greek yogurt, half the mozzarella, oregano, garlic powder, red pepper flakes, salt, and pepper. Taste as you go to make sure the seasoning is just right. Then, gently fold in the shredded chicken along with the spaghetti squash strands, making sure everything is evenly coated. This mixture will be the heart of our Cheesy Pesto Chicken Spaghetti Squash for Cozy Nights Recipe, where creamy meets herby, and tender chicken joins the party.
Step 3: Bake to Perfection
Lower your oven temperature to 375°F. Transfer the combined mixture into a greased, oven-safe baking dish, spreading it out evenly. Sprinkle the remaining mozzarella and parmesan cheese evenly over the top, promising that golden, bubbly finish we’re all craving. Bake for about 20 minutes until the cheese melts into a luscious, bubbly blanket that smells like pure comfort. This baking step takes your dish from simple to show-stopping.
Step 4: Garnish and Serve
Once out of the oven, give it a few minutes to cool slightly—this helps everything settle and makes serving easier. Drizzle with the extra pesto for that beautiful, fresh green pop and sprinkle chopped parsley over the top for color and brightness. This final touch brings freshness and vibrancy to the dish, making every bite feel like a celebration of cozy flavors.
How to Serve Cheesy Pesto Chicken Spaghetti Squash for Cozy Nights Recipe

Garnishes
Adding an extra drizzle of pesto and a handful of freshly chopped flat leaf parsley brightens the plate and intensifies the herbal notes of the dish. You might also sprinkle some crushed red pepper flakes if you prefer a little more heat, or a squeeze of fresh lemon juice to cut through the richness.
Side Dishes
This hearty, cheesy main pairs wonderfully with a crisp green salad dressed simply with lemon and olive oil, or roasted vegetables like asparagus or Brussels sprouts. A crusty slice of garlic bread could also be delightful for those who want a little more indulgence alongside.
Creative Ways to Present
For a charming presentation, serve this cheesy pesto chicken spaghetti squash straight from a mini squash bowl. Alternatively, portion it into small ramekins for individual servings that feel extra special. If you’re feeding a crowd, a large rustic baking dish placed in the center of the table encourages sharing and cozy communal dining.
Make Ahead and Storage
Storing Leftovers
This dish keeps beautifully in an airtight container in the refrigerator for up to 3 days. The flavors actually meld together nicely overnight, making it even tastier the next day.
Freezing
If you want to save some for later, you can freeze leftover portions in freezer-safe containers for up to 2 months. Just be sure to cool the dish completely before freezing to maintain the best texture.
Reheating
Reheat leftovers gently in the oven at 350°F for 15 to 20 minutes or until warmed through, to preserve the cheesy melt and prevent overcooking. A quick zap in the microwave works too if you’re short on time, but the oven method is best for keeping that cozy, baked texture.
FAQs
Can I use fresh chicken instead of leftover cooked chicken?
Absolutely! If you don’t have leftover chicken, simply cook chicken breasts by roasting, poaching, or pan-searing them until fully cooked, then shred before mixing into the recipe.
Is this dish suitable for a low-carb diet?
Yes! Spaghetti squash is a fantastic low-carb alternative to traditional pasta, so this recipe fits perfectly into a low-carb or keto-friendly eating plan.
Can I make this recipe vegetarian?
Definitely. Swap the chicken for roasted vegetables like mushrooms or zucchini and add extra cheese or even some toasted pine nuts to keep things hearty and satisfying.
What type of pesto works best?
Classic basil pesto is ideal for this recipe, offering a fresh and herbal flavor that complements the chicken and cheese perfectly. However, you can experiment with other varieties like sun-dried tomato or arugula pesto for a different twist.
How spicy is this dish?
The red pepper flakes add just a subtle touch of heat that most people find pleasant, but you can always adjust the amount up or down depending on your spice preference.
Final Thoughts
If you want a dish that brings warmth, comfort, and a little bit of elegance to your table, the Cheesy Pesto Chicken Spaghetti Squash for Cozy Nights Recipe is your new best friend. It’s one of those meals that feels like a home-cooked hug, perfect for slower evenings or impressing friends with a nourishing, tasty treat. Give it a try and watch it become a cherished favorite in your recipe collection.
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Cheesy Pesto Chicken Spaghetti Squash for Cozy Nights Recipe
- Prep Time: 10 minutes
- Cook Time: 55 minutes
- Total Time: 1 hour 5 minutes
- Yield: 4 servings
- Category: Main Course
- Method: Baking
- Cuisine: American
- Diet: Low Calorie
Description
This Cheesy Pesto Chicken Spaghetti Squash recipe offers a comforting, low-carb dinner option featuring tender roasted spaghetti squash combined with shredded chicken and a flavorful pesto-greek yogurt sauce. Topped with melted mozzarella and parmesan cheese, this dish is perfect for cozy nights when you want a hearty yet healthy meal with a burst of herby freshness.
Ingredients
Main Ingredients
- 1 medium Spaghetti Squash (This vegetable serves as a low-carb base.)
- 2 cups Shredded Cooked Chicken Breasts (Leftover chicken works perfectly here.)
- 1 cup Pesto (Adds a burst of fresh, herby flavor.)
- 1/2 cup Plain Low-Fat Greek Yogurt (Creamy element that lightens the dish.)
- 1 teaspoon Dried Oregano
- 1/2 teaspoon Red Pepper Flakes (For a hint of heat.)
- 1 teaspoon Garlic Powder
- 1 teaspoon Kosher Salt (Adjust to taste.)
- 1/2 teaspoon Fresh Ground Black Pepper
- 1 cup Shredded Part Skim Mozzarella Cheese (Melts beautifully.)
- 1/2 cup Shredded Parmesan Cheese (Adds a nutty flavor.)
- 2 tablespoons Flat Leaf Parsley (Adds a pop of color.)
- 2 tablespoons Extra Pesto (Enhances the flavor.)
Instructions
- Roast the Squash: Preheat your oven to 400°F. Slice the spaghetti squash in half lengthwise, scoop out the seeds, and place each half cut-side down on a baking sheet. Roast for about 30-35 minutes or until the flesh is tender and easy to shred with a fork. Once done, let it cool slightly, then use a fork to scrape out the strands into a bowl.
- Mix the Ingredients: In a large bowl, combine the pesto, Greek yogurt, half of the shredded mozzarella cheese, dried oregano, garlic powder, red pepper flakes, kosher salt, and freshly ground black pepper. Stir the mixture until everything is well incorporated. Gently fold in the shredded cooked chicken and the spaghetti squash strands, ensuring they are evenly coated with the sauce.
- Bake the Mixture: Preheat your oven to 375°F. Grease an oven-safe baking dish and transfer the pesto chicken and squash mixture to it, spreading it out evenly. Sprinkle the remaining mozzarella and the shredded parmesan cheese on top. Bake for about 20 minutes or until the cheeses melt and become bubbly and lightly golden.
- Garnish and Serve: Remove the baking dish from the oven and allow the casserole to rest for a few minutes. Drizzle with the extra pesto and sprinkle with freshly chopped flat leaf parsley to add a bright, fresh finish. Serve warm for a delicious, cozy meal.
Notes
- You can use leftover cooked chicken or rotisserie chicken for convenience.
- Adjust the amount of red pepper flakes to control the level of heat.
- For a dairy-free version, substitute the cheeses and yogurt with plant-based alternatives.
- Spaghetti squash can be roasted in advance and stored in the fridge for up to 3 days for meal prep.
- Make sure to scrape out all the seeds before roasting the squash to avoid bitterness.

