Hey there! If you’re on the lookout for a healthier twist on a classic comfort dish, then you’ve got to try my chicken alfredo spaghetti squash casserole! I love how spaghetti squash serves as a delightful, lower-carb alternative to pasta, all while soaking up that creamy, cheesy goodness we adore. The first time I made this, my family couldn’t get enough! It’s now a regular at our dinner table, bringing smiles and satisfied bellies every time. Trust me, you won’t miss the carbs! Plus, it’s a great way to sneak in some veggies without anyone noticing. Let’s dive into this delicious dish together!

Ingredients List
- 1 medium spaghetti squash (about 3 pounds, perfect for this recipe!)
- 2 cups cooked, shredded chicken (preferably rotisserie for that added flavor and ease)
- 2 cups cauliflower florets (fresh or frozen—just make sure they’re nice and soft)
- 1 cup heavy cream (use full-fat for the richest, creamiest texture)
- 1 cup grated Parmesan cheese (the real stuff, please! It makes all the difference)
- 2 cloves garlic, minced (because garlic makes everything better!)
- 1 teaspoon Italian seasoning (a little sprinkle of herbs to elevate the dish)
- Salt and pepper to taste (don’t be shy with the seasoning!)
- 1 tablespoon olive oil (for drizzling and roasting the squash to perfection)
How to Prepare Chicken Alfredo Spaghetti Squash Casserole
Prepping the Spaghetti Squash
First things first, let’s get that spaghetti squash ready! Preheat your oven to 375°F (190°C) so it’s nice and hot when we’re ready to bake. Carefully cut the spaghetti squash in half lengthwise—watch those fingers! Use a spoon to scoop out the seeds and any stringy bits. Drizzle the cut sides with olive oil and sprinkle some salt and pepper; this will really enhance the flavor as it roasts. Place the squash cut side down on a baking sheet and pop it in the oven for about 30-40 minutes, or until it’s tender and you can easily pierce it with a fork. This is where the magic begins!
Steaming the Cauliflower
While the squash is baking, let’s tackle the cauliflower! If you have a steamer basket, that’s perfect. If not, just use a pot with a little water and a lid. Add the cauliflower florets to the steamer, cover, and let them steam for about 8-10 minutes, or until they’re nice and soft. You want them tender enough to blend seamlessly into our casserole. Don’t forget to check them after about 5 minutes to make sure they’re not overcooking!
Making the Alfredo Sauce
Now onto the delicious part—our creamy Alfredo sauce! In a medium saucepan, combine the heavy cream, minced garlic, Italian seasoning, and grated Parmesan cheese. Heat it over medium-low heat, stirring gently until the cheese melts and everything is well combined. You don’t want to boil it, as that can cause the sauce to curdle. Trust me, a gentle heat will keep it silky smooth and oh-so-creamy!
Combining Ingredients
Once your spaghetti squash is cool enough to handle, take a fork and scrape out those beautiful strands. They should look just like spaghetti! In a large mixing bowl, combine the shredded chicken, steamed cauliflower, and spaghetti squash strands. Pour in that luscious Alfredo sauce and give everything a good mix until it’s all coated evenly. It’s like a cozy hug in a bowl!
Baking the Casserole
Now it’s time to bring it all together! Transfer the combined mixture into a greased baking dish, spreading it out evenly. Bake in the oven for another 20 minutes, just to let everything meld together and get a bit bubbly. When it’s done, take it out and let it cool for a few minutes before diving in. Your kitchen is about to smell heavenly, and I promise everyone will be asking for seconds!
Tips for Success
To ensure your chicken alfredo spaghetti squash casserole turns out perfectly every time, here are some of my top tips! First off, make sure you don’t overcook the spaghetti squash—check it at the 30-minute mark, as cooking times can vary based on the size of your squash. If it feels too firm, give it a few more minutes. You want those strands to be tender and ready to soak up all that creamy sauce!
Also, when steaming your cauliflower, be careful not to overdo it. You’re looking for soft florets that can blend easily, but you don’t want them mushy. If you’re unsure, taste-test a piece before taking them off the heat!
For the sauce, keep the heat low and stir gently. This helps avoid any curdling, which can happen if the cream is heated too quickly. If you find the sauce a bit thick after mixing, don’t hesitate to add a splash more cream or even a bit of chicken broth to loosen it up.
Lastly, don’t skimp on the seasoning! Taste as you go and adjust the salt and pepper to your liking. A little extra sprinkle of Parmesan on top before baking can also give your casserole a lovely, golden-brown finish. Trust me, these small tweaks will elevate your dish to the next level!
Variations
The beauty of this chicken alfredo spaghetti squash casserole is its versatility! You can easily switch things up to match your taste or what you have on hand. For a fun twist, try using turkey instead of chicken—perfect for using up Thanksgiving leftovers! If you’re feeling adventurous, shrimp adds a delightful seafood flair that pairs wonderfully with the creamy sauce.
Don’t forget about the veggies! You could toss in some spinach or kale for a pop of color and nutrition, or even some zucchini for extra texture. Just sauté them lightly before mixing into the casserole to ensure they’re tender. Want to add a little heat? A pinch of red pepper flakes can spice things up nicely!
Feeling creative? You can swap out the cauliflower for broccoli or even mushrooms for a different flavor profile. The key here is to maintain the essence of that creamy, cheesy goodness while experimenting with flavors and textures that you love. So go ahead, make this dish your own, and enjoy every delicious bite!
Nutritional Information Disclaimer
Before we dig into this delicious chicken alfredo spaghetti squash casserole, I want to remind you that nutritional values can vary quite a bit based on the specific ingredients and brands you choose. While I’ve provided a general idea of what to expect, it’s important to note that these numbers are not set in stone. Typically, you can expect values like Calories, Fat, Protein, Carbs, and more to change depending on what you use. So, if you’re tracking your macros or just curious, be sure to adjust based on your own ingredients. Happy cooking, and enjoy your meal with peace of mind!
FAQ Section
Got questions about my chicken alfredo spaghetti squash casserole? Don’t worry, I’ve got you covered! Here are some common inquiries I often hear:
Can I make this ahead of time?
Absolutely! This casserole is perfect for meal prep. You can assemble it a day in advance and store it in the fridge, then just pop it in the oven when you’re ready to bake. Just remember to add a few extra minutes to the baking time if it’s coming straight from the fridge!
What can I substitute for heavy cream?
If you’re looking for a lighter option, you can use half-and-half or even coconut cream for a dairy-free twist. Just keep in mind that the texture and flavor might change slightly, but it’ll still be delicious!
How do I store leftovers?
Leftovers can be stored in an airtight container in the fridge for up to 3 days. When you’re ready to enjoy it again, just reheat in the oven at a low temperature or in the microwave. It’s a great way to have a quick meal ready to go!
Can I freeze this casserole?
Yes, you can freeze it! Just make sure to let it cool completely, then cover it tightly with plastic wrap and aluminum foil. It should be good for up to 3 months in the freezer. When you’re ready to eat it, let it thaw overnight in the fridge before baking. Easy peasy!
Can I use other vegetables?
Definitely! Feel free to get creative with your veggies. As I mentioned earlier, adding spinach, kale, or even bell peppers can bring a whole new dimension to this dish. Just make sure they’re cooked to your liking before mixing them in.
Is this recipe gluten-free?
You bet! This chicken alfredo spaghetti squash casserole is naturally gluten-free, making it a fantastic option for anyone avoiding gluten. It’s a guilt-free comfort food that everyone can enjoy!
Why You’ll Love This Recipe
- Healthy twist on classic flavors: Enjoy all the creamy, cheesy goodness of traditional chicken Alfredo while keeping things lighter and healthier with spaghetti squash!
- Gluten-free ingredients: This dish is naturally gluten-free, making it a great choice for anyone with dietary restrictions.
- Easy to prepare: With simple steps and minimal fuss, you’ll have a delicious meal on the table in no time!
- Rich in protein and fiber: Packed with shredded chicken and veggies, this casserole is not only filling but also nourishing.
- Family-approved dish: Even the pickiest eaters will love this! Trust me, it’s a hit at my dinner table, and I’m sure it will be at yours too!
Chicken Alfredo Spaghetti Squash Casserole: Healthy Delight
- Prep Time: 15 minutes
- Cook Time: 50 minutes
- Total Time: 1 hour 5 minutes
- Yield: 4 servings 1x
- Category: Main Dish
- Method: Baking
- Cuisine: Italian
- Diet: Gluten Free
Description
A healthy twist on classic chicken alfredo using spaghetti squash.
Ingredients
- 1 medium spaghetti squash
- 2 cups cooked, shredded chicken
- 2 cups cauliflower florets
- 1 cup heavy cream
- 1 cup grated Parmesan cheese
- 2 cloves garlic, minced
- 1 teaspoon Italian seasoning
- Salt and pepper to taste
- 1 tablespoon olive oil
Instructions
- Preheat your oven to 375°F (190°C).
- Cut the spaghetti squash in half and remove the seeds.
- Drizzle olive oil and season with salt and pepper.
- Bake the squash cut side down for 30-40 minutes until tender.
- While the squash is baking, steam the cauliflower florets until soft.
- In a pan, combine heavy cream, garlic, Italian seasoning, and Parmesan cheese. Heat until cheese melts.
- Mix in the cooked chicken and steamed cauliflower.
- Once the squash is done, scrape out the strands and mix with the chicken mixture.
- Transfer to a baking dish and bake for an additional 20 minutes.
- Let it cool slightly before serving.
Notes
- You can substitute chicken with turkey or shrimp.
- For a vegetarian option, omit chicken and add more vegetables.
- Store leftovers in an airtight container in the fridge for up to 3 days.
Nutrition
- Serving Size: 1 cup
- Calories: 350
- Sugar: 2g
- Sodium: 600mg
- Fat: 25g
- Saturated Fat: 12g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 10g
- Fiber: 3g
- Protein: 25g
- Cholesterol: 100mg
Keywords: chicken alfredo, spaghetti squash, casserole, healthy recipe