There’s something irresistible about creamy chicken Alfredo—the silky sauce, the tender chicken, and the comforting aroma that fills the kitchen. But what if you could enjoy all that flavor without the carb overload of pasta? Enter our Creamy Chicken Alfredo Spaghetti Squash Bake—a low-carb, keto-friendly spin on a classic favorite. Using roasted spaghetti squash in place of noodles, this cozy casserole blends creamy Alfredo sauce and juicy rotisserie chicken into one irresistible dish. In this article, you’ll learn everything about making this Keto Chicken Alfredo With Spaghetti Squash: simple ingredients, prep steps, nutrition facts, and foolproof cooking tips.

The Comfort Food That Sparked It All
My love for Chicken Alfredo with Spaghetti Squash started one Sunday evening when I was searching for a lighter comfort food option that didn’t sacrifice indulgence. I had just committed to a low-carb lifestyle and missed the creamy satisfaction of traditional Alfredo pasta. That’s when I discovered spaghetti squash—a magical vegetable that transforms into golden, noodle-like strands once roasted. The first time I mixed it with my homemade Alfredo sauce and shredded chicken, the aroma of garlic and melted cheese filled the house.
Soon, this Keto Chicken Alfredo With Spaghetti Squash bake became a weekly staple. Friends and family, even those not following a low-carb diet, couldn’t get enough of its creamy texture and savory depth. Imagine pulling the bubbling dish from the oven—cheese lightly golden on top, steam rising as you scoop through tender strands of Low-Carb Spaghetti Squash entwined with juicy chicken. The balance of comfort and wholesomeness made it feel like enjoying comfort food with zero guilt.
What I especially love is how adaptable it is. Whether it’s a quick weeknight dinner or a special gathering, it hits the sweet spot between rich and refreshing. It’s comfort food without the carb crash—a recipe that celebrates indulgence and nutrition in perfect harmony.
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Creamy Chicken Alfredo Spaghetti Squash Bake
- Total Time: 1 hour 20 minutes
- Yield: 6 servings 1x
Description
This low-carb, keto-friendly casserole swaps pasta for roasted spaghetti squash, combining shredded chicken and a rich Alfredo sauce into a comforting bake. It’s simple to prep, packed with protein and healthy fats, and perfect for meal prep or cozy dinners.
Ingredients
Instructions
1. Preheat oven to 400°F (200°C) and line a baking sheet with parchment paper.
2. Slice spaghetti squash in half lengthwise, scoop out seeds, drizzle with olive oil, season with salt and pepper, and place cut side down on the baking sheet.
3. Roast squash for 35–40 minutes until tender; let cool slightly, then scrape strands into a bowl and drain excess moisture with paper towels.
4. Reduce oven temperature to 375°F (190°C).
5. In a medium saucepan over medium heat, melt butter and sauté garlic for 30 seconds.
6. Add cream cheese and stir until smooth, then whisk in heavy cream.
7. Stir in Parmesan and mozzarella until the sauce is creamy and thickened; season with salt, pepper, and Italian seasoning.
8. In a large bowl, combine spaghetti squash strands, shredded chicken, and Alfredo sauce; toss until evenly coated.
9. Transfer mixture to a 9×13-inch baking dish and sprinkle with remaining mozzarella and Parmesan.
10. Bake uncovered for 20–25 minutes until bubbly and golden; broil for 2–3 minutes if a crisp top is desired.
11. Remove from oven and let rest for 5 minutes, then garnish with fresh parsley and serve.
- Prep Time: 20 minutes
- Cook Time: 1 hour
- Category: main course
- Method: baking
- Cuisine: american
Nutrition
- Serving Size: 1 serving
- Calories: 410
- Sugar: 3
- Sodium: 560
- Fat: 28
- Saturated Fat: 15
- Unsaturated Fat: 10
- Trans Fat: 0
- Carbohydrates: 8
- Fiber: 2
- Protein: 36
- Cholesterol: 95
Keywords: creamy chicken alfredo, spaghetti squash, keto chicken alfredo, low-carb, spaghetti squash bake, keto friendly, chicken alfredo bake
Why You’ll Fall in Love With This Dish
There’s a reason this Creamy Chicken Alfredo Spaghetti Squash Bake wins hearts—each bite is a fusion of creamy sauce, tender chicken, and the mild nuttiness of squash. The Alfredo sauce coats every strand, creating a luscious bite that melts as soon as it hits your tongue. And because it’s naturally Low-Carb Spaghetti Squash, you can savor generous portions without worrying about breaking your keto goals.
This dish is a lifesaver for busy cooks. You can prepare it ahead, refrigerate it, then bake when you’re ready to serve. It reheats beautifully, making leftovers something to look forward to. Even better, the ingredients are simple—rotisserie chicken for convenience, cream cheese and parmesan for flavor, and spaghetti squash for that magical pasta-like texture.
For anyone craving comfort without compromise, this recipe is a game-changer. It’s hearty yet wholesome, indulgent yet keto-friendly—a dinner that will keep your family satisfied, cozy, and asking for seconds every single time.
Gather These Wholesome Ingredients
To make the perfect Keto Chicken Alfredo With Spaghetti Squash, you’ll start with simple, nutrient-dense ingredients that bring maximum flavor with minimal carbs. Below is a categorized table outlining everything you’ll need, along with brief notes on each item’s role and possible substitutions.
| Category | Ingredient | Role in Recipe / Notes | Keto Substitutes or Tips |
|---|---|---|---|
| Main | 1 medium spaghetti squash (about 3 lbs) | Replaces pasta; low in carbs and high in fiber | Choose a firm squash with bright yellow skin |
| 2 cups shredded rotisserie chicken (about 1 lb) | Adds tender protein and saves prep time | Swap with turkey, grilled shrimp, or cubed tofu (for dairy-free version) | |
| Sauce Base | 2 tbsp butter | Creates smooth base for sauce | Use ghee for a richer, keto-friendly fat |
| 3 cloves garlic, minced | Adds fragrant flavor and warmth | Garlic powder works in a pinch | |
| 4 oz cream cheese, softened | Provides creaminess and mild tang | Substitute with full-fat mascarpone | |
| 1 cup heavy cream | Forms the velvety Alfredo sauce consistency | Can use coconut cream for dairy-free version | |
| ½ cup grated Parmesan cheese | Sharp, salty flavor that thickens the sauce | Nutritional yeast for dairy-free option | |
| ¼ cup shredded mozzarella | Adds stretchiness and helps sauce bind | Omit for lighter texture | |
| Toppings | ¼ cup shredded mozzarella or Parmesan | Creates golden crust while baking | Sprinkle crushed pork rinds for extra crunch |
| 1 tbsp chopped fresh parsley | Brightens flavor and presentation | Try basil or chives for variation | |
| Seasonings | ½ tsp sea salt | Enhances all flavors | Adjust to taste |
| ¼ tsp black pepper | Balances richness | Add red pepper flakes for subtle heat | |
| ¼ tsp Italian seasoning | Adds herbal aroma | Blend of oregano, basil, thyme works too |
Recommended Tools:
- Sharp chef’s knife
- Baking sheet and parchment paper
- Medium saucepan
- Whisk and wooden spoon
- Large mixing bowl
- 9×13-inch casserole dish
These items make the process smooth and ensure your Creamy Chicken Alfredo Spaghetti Squash Bake turns out restaurant-worthy with a golden, bubbly top and perfectly balanced flavors.
Step-by-Step Preparation & Baking Method
Follow this simple process to transform everyday ingredients into a creamy, comforting casserole that’s both low-carb and keto-friendly.
- Roast the Spaghetti Squash
Preheat oven to 400°F (200°C). Slice squash lengthwise, scoop seeds, season, and roast cut-side down for 35–40 minutes. Let cool, then scrape strands with a fork and drain on paper towels to remove moisture. - Prepare the Alfredo Sauce
Melt butter, sauté garlic for 30 seconds, add cream cheese, heavy cream, Parmesan, and mozzarella. Whisk until smooth and thickened, season to taste. - Combine and Assemble
Toss roasted squash with shredded chicken and sauce, then transfer to a greased casserole dish. Top with extra mozzarella and Parmesan. - Bake
Bake at 375°F (190°C) for 20–25 minutes until bubbly and golden. Broil briefly for a crisp top. Rest 5 minutes before serving.
Pro Tips: Press cooked squash lightly to avoid excess water. Refrigerate leftovers up to four days or freeze for one month. Reheat gently in a covered dish at low heat. Pair with green salad or roasted veggies for a balanced meal.
Why It’s Perfect for Low-Carb and Keto Diets
This Creamy Chicken Alfredo Spaghetti Squash Bake satisfies comfort food cravings while fitting into keto plans. Instead of pasta, Low-Carb Spaghetti Squash gives a noodle-like texture with few carbs. Each serving has plenty of protein from chicken, healthy fats from butter and cream cheese, and minimal carbs, keeping you full longer.
Here’s a quick comparison showing how much lighter it is than traditional Alfredo pasta:
| Nutritional Factor (Per Serving) | Traditional Chicken Alfredo (With Pasta) | Low-Carb Spaghetti Squash Chicken Alfredo |
|---|---|---|
| Calories | ~640 kcal | ~410 kcal |
| Net Carbs | ~42g | ~8g |
| Protein | ~33g | ~36g |
| Fat | ~38g | ~28g |
Swapping pasta for squash cuts carbs by nearly 80% while keeping creamy satisfaction. Squash also brings vitamins C, potassium, and beta-carotene. The balance of fats and proteins supports ketosis and steady energy. It’s indulgent, nutritious, and guilt-free comfort food that fits your plan beautifully.
Flavor Variations & Smart Add-Ins
Low-Carb Spaghetti Squash is a blank canvas for creativity. Try these easy variations and flavor upgrades for endless meal options.
- Veggie Boost: Stir in spinach or kale for added color and nutrients.
- Mushroom Medley: Add sautéed mushrooms for earthy flavor.
- Crispy Bacon or Pancetta: Sprinkle before baking for an umami crunch.
- Seafood Twist: Swap chicken with shrimp or crab.
Seasoning & Topping Ideas: Add red pepper flakes or lemon zest, mix herbs like basil or thyme, or top with almond flour-Parmesan crumbs or crushed pork rinds. Drizzle garlic-infused olive oil for extra shine. Pair it with a crisp salad or light white wine for the perfect balance.
Frequently Asked Questions
1. Can I make this recipe dairy-free or gluten-free?
Yes. Substitute butter with olive oil, use coconut cream instead of heavy cream, and choose dairy-free cheeses. The recipe is naturally gluten-free.
2. How can I store leftovers?
Cool completely, store airtight for up to four days, or freeze for one month. Reheat covered at 300°F (150°C) to preserve creaminess.
3. Is spaghetti squash truly low-carb?
Yes. One cup has only about 8g net carbs versus 40g in pasta, making it perfect for Chicken Alfredo with Spaghetti Squash.
4. Can I use other meats aside from chicken?
Definitely—try turkey, shrimp, crab, or even salmon. For a meat-free version, use mushrooms or roasted cauliflower.
5. How do I keep the Alfredo sauce creamy when reheating?
Reheat gently on low heat or in a covered skillet. Add a splash of cream or almond milk if needed to restore smoothness.
Final Thoughts & Serving Inspiration
This Creamy Chicken Alfredo Spaghetti Squash Bake brings together flavor, comfort, and nutrition. It’s an example of how healthy eating can be joyful and satisfying, blending tender squash, juicy chicken, and a velvety Alfredo sauce into one nourishing meal.
It deserves a top spot among your favorite Stuffed Spaghetti Squash Recipes Healthy—ideal for busy weeknights or cozy gatherings. Serve it with salad or roasted veggies for a full, vibrant plate.
Most importantly, enjoy it with loved ones. Try this Keto Chicken Alfredo With Spaghetti Squash today, share your version, and celebrate how wholesome comfort food can also be truly delicious.













