Chicken Alfredo Spaghetti Squash Casserole: Whole30, Paleo, Low Carb, GF

This Chicken Alfredo Spaghetti Squash Casserole: Whole30, Paleo, Low Carb, GF is a delightful dish that combines tender chicken with the unique texture of spaghetti squash. Packed with broccoli and onions, this casserole is perfect for meal prep or a quick weeknight dinner. Its creamy Alfredo sauce adds flavor without any dairy, making it suitable for various dietary preferences. Enjoy a hearty and satisfying meal that’s easy to prepare and reheats well!

Why You’ll Love This Recipe

• Healthy and Nutritious: This casserole is loaded with vegetables and lean protein, making it a wholesome choice.
• Easy to Prepare: With straightforward steps and minimal prep time, you can have this dish ready in just over an hour.
• Great for Meal Prep: Perfect for leftovers, this casserole is easy to store and reheat for future meals.
• Delicious Flavor: The combination of chicken and Alfredo sauce gives this dish a rich taste without compromising your diet.
• Versatile Dish: It works well as a main course or side dish and can be tailored to your preference by adding different veggies.

Tools and Preparation

Before getting started on your Chicken Alfredo Spaghetti Squash Casserole, gather the necessary tools to make the process smooth.

Essential Tools and Equipment

• Baking sheet
• Large casserole dish
• Fork
• Sharp knife
• Cutting board

Importance of Each Tool

• Baking sheet: Essential for roasting the spaghetti squash evenly in the oven.
• Large casserole dish: Holds all ingredients together while allowing them to bake perfectly.
• Fork: Useful for scraping out the spaghetti squash strands and mixing ingredients thoroughly.
• Sharp knife: Ensures safe and efficient cutting of the spaghetti squash and chicken.

Ingredients

Chicken & Vegetables

• 1 lb boneless, skinless chicken breasts
• 1 medium white onion, diced
• 1 medium sized spaghetti squash
• 3 cups broccoli florets

Sauce & Seasoning

• 1 jar Primal Kitchen Garlic Alfredo Sauce (or homemade Whole30/Dairy-Free Alfredo)
• 1/2 tsp salt (plus more for seasoning chicken)
• 1/2 tsp garlic powder
• 1/2 tsp pepper (plus more for seasoning chicken)
• 1/2 tbsp olive oil (or avocado oil)

How to Make Chicken Alfredo Spaghetti Squash Casserole: Whole30, Paleo, Low Carb, GF

Step 1: Preheat the Oven

Preheat your oven to 400 degrees F. This ensures that your casserole cooks evenly from the start.

Step 2: Prepare the Spaghetti Squash

Cut the spaghetti squash in half lengthwise. Scrape out the seeds. Spray the cut sides with cooking oil and sprinkle with salt. Place cut side down onto a baking sheet on an upper rack in the oven.

Step 3: Season the Chicken

In a large casserole dish, combine chicken breasts, diced onion, and olive oil. Sprinkle with salt and pepper. Toss to coat everything evenly before placing it into the oven on a lower rack.

Step 4: Bake Together

Bake both dishes in the preheated oven for about 30 minutes until everything is cooked through.

Step 5: Combine Ingredients

Carefully remove both dishes from the oven. Dice the cooked chicken breasts and return them to the casserole dish. Use a fork to scrape out spaghetti squash threads into the same dish—it’s okay if it’s not fully cooked yet.

Step 6: Add Sauce & Broccoli

Pour in the garlic Alfredo sauce along with broccoli florets, additional salt, pepper, and garlic powder. Use two forks to mix everything together until well combined.

Step 7: Final Bake

Return the casserole mixture to the oven. Bake for an additional 30 minutes or until the top is slightly golden brown.

Step 8: Serve & Enjoy!

Remove from oven carefully. Dish into bowls and enjoy your delicious Chicken Alfredo Spaghetti Squash Casserole!

How to Serve Chicken Alfredo Spaghetti Squash Casserole: Whole30, Paleo, Low Carb, GF

Serving your Chicken Alfredo Spaghetti Squash Casserole can elevate the meal experience. Here are some delightful ways to present and enjoy this wholesome dish.

With Fresh Herbs

• Garnish with parsley or basil: Adding freshly chopped herbs enhances flavor and adds a pop of color.

Accompanied by Salad

• Serve with a mixed greens salad: A light salad with lemon vinaigrette complements the casserole’s richness.

Topped with Avocado

• Add sliced avocado on top: Creamy avocado adds healthy fats and a creamy texture that pairs well with the casserole.

Pair with Roasted Vegetables

• Serve alongside roasted veggies: Carrots, zucchini, or bell peppers roasted in olive oil bring extra nutrients and flavor.

In Individual Portions

• Dish into ramekins for serving: This creates a fun and personal touch for each guest, making the meal feel special.

How to Perfect Chicken Alfredo Spaghetti Squash Casserole: Whole30, Paleo, Low Carb, GF

Perfecting your casserole is all about attention to detail. Here are some tips to make it even better.

• Use fresh ingredients: Fresh chicken and vegetables significantly enhance the flavor of your casserole.
• Adjust seasoning to taste: Don’t hesitate to add more salt or pepper based on your preference before baking.
• Bake until golden brown: Ensure the top is slightly crispy for that perfect texture contrast.
• Let it rest before serving: Allowing it to cool for a few minutes helps flavors meld together.
• Experiment with veggies: Feel free to add other vegetables like spinach or bell peppers for added nutrition.
• Store leftovers properly: Keep any leftovers in an airtight container in the fridge for up to 3 days.

Best Side Dishes for Chicken Alfredo Spaghetti Squash Casserole: Whole30, Paleo, Low Carb, GF

Pairing side dishes with your Chicken Alfredo Spaghetti Squash Casserole can create a balanced meal. Here are some excellent options:

1. Steamed Asparagus: Lightly steamed asparagus adds freshness and crunch to your plate.
2. Garlic Green Beans: Sautéed green beans with garlic make a delicious side that complements the casserole’s flavors.
3. Zucchini Noodles: Spiralized zucchini tossed with olive oil offers a low-carb alternative that’s also fun to eat.
4. Cauliflower Rice: Fluffy cauliflower rice serves as a great base for those looking for more volume without carbs.
5. Cucumber Salad: A refreshing cucumber salad dressed in vinegar provides a crisp contrast to the warm casserole.
6. Roasted Brussels Sprouts: Crispy roasted Brussels sprouts add depth and flavor while maintaining health-conscious choices.
7. Radish Slaw: A crunchy slaw made from radishes and carrots dressed in lime juice brings brightness to the dish.
8. Stuffed Bell Peppers: Fill bell peppers with quinoa and spices for another hearty yet healthy option alongside your casserole.

Common Mistakes to Avoid

Cooking can be tricky, and it’s easy to make mistakes. Here are some common pitfalls when making your Chicken Alfredo Spaghetti Squash Casserole.

• Not Preheating the Oven: Forgetting to preheat the oven can lead to uneven cooking. Always ensure your oven is at the correct temperature before placing dishes inside.
• Overcooking the Chicken: Cooking the chicken for too long can dry it out. Use a meat thermometer to check for doneness, aiming for 165°F (75°C).
• Ignoring Seasoning: Under-seasoning can make your casserole bland. Don’t skip salt and pepper; taste as you go and adjust seasoning accordingly.
• Cutting the Squash Incorrectly: Cutting spaghetti squash improperly can make it difficult to scrape out the strands later. Always cut lengthwise and ensure a steady hand for even halves.
• Rushing the Mixing Process: Not mixing ingredients thoroughly can result in uneven flavors. Take your time when combining ingredients to ensure each bite is delicious.

Storage & Reheating Instructions

Refrigerator Storage

• Store leftovers in an airtight container.
• The casserole will last up to 4 days in the refrigerator.

Freezing Chicken Alfredo Spaghetti Squash Casserole: Whole30, Paleo, Low Carb, GF

• Freeze in a freezer-safe container or heavy-duty freezer bag.
• It can be frozen for up to 3 months for best quality.

Reheating Chicken Alfredo Spaghetti Squash Casserole: Whole30, Paleo, Low Carb, GF

• Oven: Preheat the oven to 350°F (175°C) and heat until warmed through, about 20-25 minutes.
• Microwave: Heat in a microwave-safe dish on medium power in 1-minute increments until hot.
• Stovetop: Heat in a skillet over medium heat, stirring occasionally until heated through.

Frequently Asked Questions

Here are some common questions about making Chicken Alfredo Spaghetti Squash Casserole.

Can I use other vegetables in my Chicken Alfredo Spaghetti Squash Casserole?

You can definitely customize this recipe! Feel free to add vegetables like bell peppers or spinach according to your preference.

How do I know when the spaghetti squash is fully cooked?

The squash should be tender enough that you can easily scrape out the strands with a fork. If it’s still firm, return it to the oven for a bit longer.

Is this casserole suitable for meal prep?

Absolutely! This Chicken Alfredo Spaghetti Squash Casserole is perfect for meal prep as it stores well and reheats nicely throughout the week.

Can I substitute different proteins?

Yes! You can use turkey or even beef if you prefer. Just adjust cooking times as needed based on protein choice.

Final Thoughts

This Chicken Alfredo Spaghetti Squash Casserole is not only delicious but also versatile! With its wholesome ingredients and rich flavors, it’s perfect for any weeknight dinner or meal prep option. Feel free to customize with your favorite veggies or protein options. Give it a try—you won’t be disappointed!

Did You Enjoy Making This Recipe? Please rate this recipe with ⭐⭐⭐⭐⭐ or leave a comment.

📖 Recipe Card

Print

Chicken Alfredo Spaghetti Squash Casserole

---

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

No reviews

• Author: Lara
• Total Time: 1 hour 20 minutes
• Yield: Serves 6

Print Recipe

Pin Recipe

Description

Indulge in a comforting and nutritious Chicken Alfredo Spaghetti Squash Casserole that seamlessly combines tender chicken with the unique texture of spaghetti squash. This dish is loaded with fresh broccoli and onions, all enveloped in a creamy dairy-free Alfredo sauce, making it not only satisfying but also suitable for various dietary preferences including Whole30, Paleo, and low-carb lifestyles. Perfect for meal prep or quick weeknight dinners, this casserole reheats beautifully, ensuring you can enjoy its delicious flavors multiple times throughout the week. Elevate your dining experience with this wholesome recipe that’s sure to please the whole family.

---

Ingredients

Scale 1x2x3x

• 1 lb boneless, skinless chicken breasts
• 1 medium white onion, diced
• 1 medium sized spaghetti squash
• 3 cups broccoli florets
• 1 jar Primal Kitchen Garlic Alfredo Sauce (or homemade)
• 1/2 tbsp olive oil
• 1/2 tsp salt
• 1/2 tsp garlic powder
• 1/2 tsp pepper

Cook Mode Prevent your screen from going dark

---

Instructions

1. Preheat your oven to 400°F.
2. Halve the spaghetti squash lengthwise, remove seeds, coat with oil and salt, then place cut side down on a baking sheet.
3. In a large casserole dish, combine diced chicken breasts, onion, olive oil, salt, and pepper; mix well.
4. Bake both the spaghetti squash and chicken for about 30 minutes until cooked through.
5. Dice the chicken and scrape out the squash strands into the casserole dish.
6. Mix in broccoli florets and garlic Alfredo sauce until combined.
7. Return to oven and bake for an additional 30 minutes until top is golden brown.
8. Serve warm and enjoy!

• Prep Time: 20 minutes
• Cook Time: 60 minutes
• Category: Main
• Method: Baking
• Cuisine: American

Nutrition

• Serving Size: 1/6 of casserole (approximately 300g)
• Calories: 350
• Sugar: 4g
• Sodium: 450mg
• Fat: 15g
• Saturated Fat: 2g
• Unsaturated Fat: 12g
• Trans Fat: 0g
• Carbohydrates: 25g
• Fiber: 5g
• Protein: 30g
• Cholesterol: 85mg