There’s something undeniably special about a cozy night spent in the kitchen, especially when you’re chasing that nostalgic, creamy comfort of a pasta dinner—without all the carbs. My introduction to Creamy Chicken & Broccoli Alfredo Spaghetti Squash happened on one of those crisp, chilly evenings when all I wanted was a hearty, home-cooked meal that wouldn’t throw my Keto goals off track.
Until that point, I wasn’t sure any vegetable could truly stand in for the satisfying strands of pasta I adored. But as the spaghetti squash roasted in the oven and I stirred together a velvety Alfredo sauce brimming with garlic, butter, and Parmesan, my kitchen filled with the same comforting aroma as an Italian bistro. Once I combined tender chunks of cooked chicken, lightly steamed broccoli, and the golden squash threads, it hit me: this was a Keto dinner I could fall in love with—and never feel deprived again.
The first bite of that Creamy Chicken & Broccoli Alfredo Spaghetti Squash was a revelation. The sauce was as indulgent as any restaurant Alfredo I’d ever had, yet lighter and perfectly balanced. The chicken added hearty protein, the broccoli brought a hint of freshness, and the spaghetti squash transformed into an amazing noodle-like texture. It was more than a dinner; it was that ideal blend of comfort and nourishment that every low carb chicken casserole dreams of being.
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Creamy Chicken & Broccoli Alfredo Spaghetti Squash for a Keto Comfort Dinner
- Total Time: 1 hour 20 minutes
- Yield: 6 servings 1x
Description
This creamy chicken and broccoli Alfredo spaghetti squash is a low-carb comfort meal combining tender roasted squash strands, velvety Alfredo sauce, shredded chicken, and crisp-tender broccoli. It’s a simple weeknight casserole that fits Keto, Whole30, and Paleo diets without sacrificing indulgent flavor.
Ingredients
Instructions
1. Preheat oven to 400°F (200°C) and line a baking sheet with parchment paper
2. Slice the spaghetti squash lengthwise, remove seeds, brush with olive oil and season with salt and pepper
3. Roast squash halves face down for 35-40 minutes until tender, then let cool slightly
4. Steam broccoli florets until bright green and tender, about 3 minutes, then drain
5. In a skillet over medium heat, melt butter and sauté minced garlic until fragrant
6. Stir in heavy cream and cream cheese, whisk until smooth and then add parmesan, whisking until sauce thickens
7. Season sauce with salt, pepper, and italian seasoning
8. Use a fork to scrape roasted squash into strands and place in a mixing bowl
9. Add shredded chicken, steamed broccoli, and Alfredo sauce to the bowl and toss to combine
10. Transfer mixture to a greased 9×13-inch casserole dish and sprinkle mozzarella evenly over the top
11. Bake at 375°F (190°C) for 20-25 minutes until hot and cheese is bubbly and golden
12. Let the casserole rest for 10 minutes, 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: 450
- Sugar: 5
- Sodium: 600
- Fat: 35
- Saturated Fat: 18
- Unsaturated Fat: 12
- Trans Fat: 0
- Carbohydrates: 12
- Fiber: 4
- Protein: 25
- Cholesterol: 120
Keywords: creamy chicken alfredo, broccoli alfredo, spaghetti squash, keto comfort dinner, low carb casserole, whole30 friendly, paleo dinner, easy weeknight meal, healthy comfort food, low carb
From that evening on, it became a recurring weeknight classic in my home, a dish that made healthy eating feel joyful instead of restrictive. It’s truly the kind of recipe that changes how you think about Keto cooking—rich, wholesome, and soul-soothing all at once.
Why Spaghetti Squash Makes the Perfect Keto Comfort Dinner
What makes Spaghetti Squash Alfredo such a standout star for health-conscious eaters is its ability to satisfy both cravings and nutritional needs. Instead of traditional pasta loaded with starch, spaghetti squash transforms into long, tender strands that mimic real noodles but with a fraction of the carbs. Each bite delivers the familiar texture and satisfaction of your favorite creamy pasta dish, but without the guilt—making this the ultimate Keto comfort dinner.
Beyond its appeal to Keto dieters, this recipe aligns beautifully with multiple wellness lifestyles. You can easily adapt it for Whole30 Chicken Spaghetti or even make it Paleo-friendly by swapping dairy-based Alfredo for versions made with cashew cream, coconut milk, or nutritional yeast. It’s proof that a nutrient-rich, vegetable-forward dinner can still feel indulgent and deeply satisfying.
The combination of Creamy Chicken & Broccoli Alfredo Spaghetti Squash captures everything we love about traditional comfort food—warm flavors, creamy sauce, and hearty bites—yet remains intentionally low in carbs and full of wholesome ingredients. Whether you’re balancing macros, following Keto Chicken Spaghetti Squash Recipes, or simply seeking a feel-good meal the whole family will devour, this dish checks every box.
It’s a one-dish wonder that brings everyone together around the table. Kids love the cheesy Alfredo flavor, adults appreciate the freshness and health benefits, and everyone agrees it’s an easy dinner worth repeating. The recipe perfectly fits those busy weeknights when you crave something comforting yet aligned with your clean eating goals. When you boil it down, the secret isn’t just in the creamy sauce or the tender squash—it’s in the simplicity. Creamy Chicken & Broccoli Alfredo Spaghetti Squash bridges the gap between indulgent flavor and mindful eating, proving you can have both in every forkful.
Gathering the Ingredients for Chicken and Broccoli Alfredo Spaghetti Squash
The Essential Ingredients List
Every delicious Spaghetti Squash Casserole starts with the right ingredients—fresh, flavorful, and perfectly balanced for that classic creamy comfort you crave from a Keto Chicken Alfredo. This recipe keeps things simple and adaptable while ensuring every ingredient contributes to that indulgent, restaurant-style taste in a Low Carb Chicken Casserole.
| Ingredient | Amount | Notes/Description |
|---|---|---|
| Spaghetti squash | 1 large (about 2.5–3 lbs) | Halved and seeds removed |
| Olive oil | 1–2 tablespoons | For brushing the squash before roasting |
| Salt and pepper | To taste | Basic seasoning for all components |
| Cooked chicken breast | 2 cups, shredded or cubed | Use rotisserie or leftover chicken |
| Fresh broccoli florets | 2 cups | Lightly steamed until bright green |
| Butter | 2 tablespoons | For making the Alfredo sauce |
| Garlic | 3–4 cloves, minced | Adds depth and aroma |
| Heavy cream | 1 cup | Keto-friendly base for rich Alfredo sauce |
| Cream cheese | 2 ounces | Thickens the sauce for extra creaminess |
| Parmesan cheese | ¾ cup, freshly grated | Essential for authentic Alfredo flavor |
| Mozzarella cheese | 1 cup, shredded | Melty topping for the baked casserole |
| Italian seasoning | ½ teaspoon | Optional, for an herby touch |
| Fresh parsley | For garnish | Adds freshness at serving time |
Each ingredient serves a purpose. The spaghetti squash offers a noodle-like base full of fiber and vitamins. Heavy cream and Parmesan provide that signature velvety Alfredo richness that keeps this dish true to its name. Broccoli brings color, crunch, and nutrition, while tender chicken transforms it into a hearty meal fit for any Keto dinner.
Kitchen Tools and Preparation Steps
Cooking this comforting Spaghetti Squash Casserole doesn’t require fancy kitchen gadgets—just a few reliable tools that make the process simple and enjoyable.
- Baking sheet: For roasting the spaghetti squash evenly.
- Sharp chef’s knife: To safely and smoothly cut through the tough squash shell.
- Large skillet or saucepan: For cooking the Alfredo sauce.
- Mixing bowls: To combine ingredients easily.
- Fork: Perfect for shredding the roasted squash strands.
- Casserole dish (9×13 inches): For baking the final Keto Chicken Alfredo masterpiece.
- Roast the Spaghetti Squash: Preheat the oven to 400°F (200°C). Slice the squash in half, scoop out seeds, drizzle with olive oil, and season with salt and pepper. Roast face down for 35–40 minutes until tender. Cool slightly, then scrape out strands.
- Steam the Broccoli: Steam florets for 3 minutes until bright green and tender-crisp.
- Make the Creamy Alfredo Sauce: Melt butter, sauté garlic, stir in cream and cream cheese, then add Parmesan until thickened. Season to taste.
- Combine the Components: Mix the squash, chicken, broccoli, and sauce until evenly coated.
- Assemble the Casserole: Transfer to a greased 9×13 dish and top with mozzarella.
- Bake to Perfection: Bake at 375°F (190°C) for 20–25 minutes, then broil 2–3 minutes for a golden top.
Once baked, your kitchen will fill with aromas of melted cheese and creamy Alfredo goodness. Each texture—tender chicken, crisp broccoli, and roasted squash—blends perfectly for the ultimate Keto comfort dinner. Serve hot with parsley garnish for a stunning presentation.
Perfecting Your Baked Spaghetti Squash Casserole
Baking for the Ideal Texture and Flavor
When it comes to creating the perfect Baked Spaghetti Squash Casserole with Chicken and Broccoli, texture is everything. You want the squash to hold its shape, the sauce to remain silky, and the top beautifully browned. Ensuring success means mastering timing and moisture control.
After roasting, gently press the spaghetti squash strands in a towel or colander to release excess water. This keeps the casserole creamy, not soggy. Bake for 20–25 minutes at 375°F (190°C), watching for bubbling edges and a soft-set center. For a crisper top, broil briefly to achieve golden perfection. Let rest 10 minutes before serving to allow flavors to meld.
Enhance your Baked Spaghetti Squash Casserole with Chicken and Broccoli by mixing in ingredients like bacon, mushrooms, or a drizzle of pesto. Each twist creates new layers of flavor while staying true to its cozy, low-carb essence.
Creative Variations and Diet-Friendly Options
This Creamy Chicken & Broccoli Alfredo Spaghetti Squash adapts effortlessly to various diets and flavor preferences, making it a versatile Keto comfort dinner or part of your favorite Spaghetti Squash Recipes for Low Carb Meals.
- Dairy-Free & Paleo: Swap the dairy Alfredo for a cashew or cauliflower base blended with coconut milk, garlic, and nutritional yeast.
- Whole30: Use ghee instead of butter, skip cheese, and add compliant seasonings.
- Protein Alternatives: Substitute chicken with shrimp, turkey, or plant-based options like mushrooms or spinach.
- Flavor Boosts: Add red pepper flakes, paprika, sun-dried tomatoes, or even a crunchy almond flour topping for texture.
Each variation maintains the soul of the dish—comforting, balanced, and indulgent without the carbs. That’s the beauty of Creamy Chicken & Broccoli Alfredo Spaghetti Squash: it’s endlessly customizable yet consistently satisfying.
FAQ for Keto Chicken & Broccoli Alfredo Spaghetti Squash
1. Can I make this Chicken & Broccoli Alfredo Spaghetti Squash ahead of time?
Absolutely! Assemble it the day before, refrigerate, then bake at 375°F (190°C) for about 30 minutes. It’s an ideal low carb chicken casserole for meal prep nights.
2. How do I store leftovers?
Keep in an airtight container for up to 4 days. Reheat portions in the microwave or oven; add a splash of cream or broth to restore smoothness.
3. What can I substitute for Alfredo sauce?
Use Greek yogurt, cottage cheese, or a cashew-coconut milk blend for a lighter or dairy-free option—perfect for Whole30 Chicken Spaghetti.
4. How do I get the squash to shred properly?
Roast until fork-tender, then cool slightly. Scrape from edges toward center for long strands; avoid overcooking to maintain structure in your Baked Spaghetti Squash Casserole with Chicken and Broccoli.
5. Is this casserole freezer-friendly?
Yes! Freeze portions up to two months. Thaw overnight, then reheat until bubbly for a grab-and-go Keto Chicken Alfredo meal anytime.
A Cozy, Low-Carb Comfort Meal that Fits Every Lifestyle
Creamy Chicken & Broccoli Alfredo Spaghetti Squash brings together all the familiarity of a creamy pasta night—without the carbs. Each forkful offers tender chicken, crisp broccoli, and luscious Alfredo sauce swirled through golden squash strands. It’s comfort reborn the Keto way.
Whether you follow Keto, Whole30, or simply aim for wholesome dinners, this casserole fits seamlessly. With simple prep and satisfying flavors, it’s proof healthy eating doesn’t mean dull meals. Warm, cheesy, and nourishing, this dish delights the whole family.
Next time you crave rich, cozy flavors, whip up this Creamy Chicken & Broccoli Alfredo Spaghetti Squash. It’s a reliable one-pan dinner that balances indulgence with nutrition, reminding you comfort food can be both delicious and mindful—every single bite.
