Spaghetti Squash Casserole Recipe
If you’re looking for a cozy, comforting dish that’s easy to whip up and packed with flavor, you’re in for a treat with this Spaghetti Squash Casserole Recipe! This hearty casserole combines the unique texture of spaghetti squash with spicy southwest flavors, making it a delightful choice for busy weeknights or family gatherings. It’s a dish that warms the heart and fills the belly without being heavy, allowing everyone at the table to leave satisfied.
What I love most about this recipe is how versatile it is. Whether you’re serving it as a main dish or a side, it’s sure to impress. Plus, it’s loaded with wholesome ingredients that make this casserole not just tasty but also nutritious!
Why You’ll Love This Recipe
- Easy to Prepare: This casserole comes together quickly, making it perfect for those nights when time is short.
- Family-Friendly Appeal: Kids and adults alike will enjoy the flavors and textures; it’s a hit at any dinner table!
- Make-Ahead Convenience: You can assemble it ahead of time and pop it in the oven when you’re ready, saving you precious time.
- Wholesome Ingredients: Packed with chicken, beans, and veggies, this recipe keeps things healthy while still being indulgent.
- Delicious Flavor: The combination of spices and creamy cheese creates layers of flavor that everyone will rave about.

Ingredients You’ll Need
Let’s gather some simple, wholesome ingredients for this delightful casserole. Everything you need is easy to find at your local grocery store.
For the Casserole
- 1 spaghetti squash (roasted and flesh scraped out with a fork into spaghetti-like strands)
- 2 teaspoons olive oil
- 1/4 cup finely chopped green onions
- 1 jalapeño, (seeds removed and finely chopped)
- 3/4 cup black beans, (drained and rinsed)
- 1/2 cup frozen corn, (defrosted)
- 1/2 pound boneless skinless chicken breasts, (cooked and shredded)
- 1 teaspoon chili powder
- 1 teaspoon ground cumin
- 1/4 teaspoon granulated garlic
- Kosher salt and fresh ground black pepper to taste
- 1 cup red enchilada sauce
- 1/2 cup shredded Monterey Jack cheese
For Toppings
- Chopped tomatoes
- Chopped green onions
- Chopped cilantro
Variations
This Spaghetti Squash Casserole Recipe is wonderfully flexible! Here are some fun ideas to switch things up:
- Swap the protein: Use ground turkey or shredded rotisserie chicken for an easier option.
- Add more veggies: Toss in bell peppers or zucchini for extra nutrition and flavor.
- Change the cheese: Try using pepper jack for an added kick or a dairy-free cheese if you’re looking for alternatives.
- Make it spicy: If you love heat, add more jalapeños or even some diced green chilies.
How to Make Spaghetti Squash Casserole Recipe
Step 1: Preheat Your Oven
First things first—preheat your oven to 375° F. This step is essential as it ensures your casserole cooks evenly while helping that cheesy topping melt beautifully!
Step 2: Sauté the Vegetables
In a large oven-safe skillet, heat the olive oil over medium-high heat. When it’s nice and hot, add in the green onions and jalapeño. Sauté them for about 2 minutes until they become fragrant. This step brings out their natural sweetness and adds depth to your casserole.
Step 3: Mix in the Good Stuff
Next, stir in the black beans, corn, shredded chicken, chili powder, cumin, and garlic powder. Season everything with salt and pepper. Give it all a good stir until combined; this mix of flavors is what makes this casserole so delicious!
Step 4: Combine with Spaghetti Squash
Now it’s time to add those lovely spaghetti squash strands along with the enchilada sauce. Mix everything together until well combined. Top off your mixture with shredded cheese—this is where the magic happens!
Step 5: Bake Away
Place your skillet in the preheated oven and bake for about 15 minutes or until warmed through and the cheese is all melted and bubbly. Once it’s out of the oven, feel free to top with chopped tomatoes, cilantro, and green onions for a fresh finish.
And there you have it—a warm bowl of comfort that’s ready to be served! Enjoy every bite of this flavorful Spaghetti Squash Casserole Recipe!
Pro Tips for Making Spaghetti Squash Casserole Recipe
Creating the perfect Spaghetti Squash Casserole is all about attention to detail and a few handy tricks!
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Choose a ripe spaghetti squash: Look for one with a uniform yellow color and no soft spots. A fresh squash will yield better flavor and texture.
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Prep your chicken ahead of time: Using pre-cooked or leftover chicken can save you time and make dinner prep a breeze. Shredded rotisserie chicken works wonderfully in this recipe.
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Adjust the spice level: Feel free to modify the amount of jalapeño or chili powder based on your heat preference. This allows you to customize the dish for your family’s taste.
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Layer your ingredients properly: When mixing in the spaghetti squash, ensure it’s fully combined with the other ingredients before baking. This helps distribute flavors evenly throughout the casserole.
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Let it rest before serving: Allow the casserole to sit for about 5 minutes after baking. This helps it set up nicely, making it easier to serve and enhancing the flavors.
How to Serve Spaghetti Squash Casserole Recipe
Serving your Spaghetti Squash Casserole can turn a simple meal into an impressive feast! Here are some ideas to elevate your dining experience.
Garnishes
- Chopped cilantro: Adds a fresh, vibrant touch that complements the southwestern flavors beautifully.
- Diced avocados: Creamy avocado chunks can enhance the dish’s texture and bring a cool contrast to the spices.
- Fresh lime wedges: A squeeze of lime juice right before serving brightens up the entire dish, adding a zesty finish.
Side Dishes
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Mexican Street Corn Salad: This refreshing salad combines corn, lime, cilantro, and cotija cheese (or a dairy-free alternative) for a delightful crunch that pairs perfectly with the casserole.
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Guacamole and Tortilla Chips: The creamy guacamole paired with crispy chips makes for a fun side that adds richness and texture to your meal.
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Simple Green Salad: A light salad with mixed greens, cherry tomatoes, cucumbers, and a tangy vinaigrette provides a nice balance to the hearty casserole.
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Cilantro Lime Rice: Fluffy rice flavored with cilantro and lime is an excellent accompaniment that soaks up extra enchilada sauce while complementing the dish’s flavors.
With these tips and serving suggestions, you’ll not only create an unforgettable Spaghetti Squash Casserole but also impress your family and friends at mealtime! Enjoy every bite!

Make Ahead and Storage
This Southwest Spaghetti Squash Casserole is a fantastic option for meal prep! With its hearty ingredients, it not only makes for a delicious dinner but can also save you time on busy weekdays. Here’s how to store and reheat your casserole to keep it fresh and tasty.
Storing Leftovers
- After the casserole has cooled, transfer any leftovers to an airtight container.
- Store in the refrigerator for up to 3 days.
- Label the container with the date to keep track of freshness.
Freezing
- Allow the casserole to cool completely before freezing.
- Portion it into freezer-safe containers or wrap tightly in plastic wrap and foil.
- It can be frozen for up to 3 months. Be sure to label with the date!
Reheating
- Thaw overnight in the refrigerator if frozen.
- To reheat, preheat your oven to 350°F (175°C) and bake covered for about 20-25 minutes until warmed through.
- For quicker reheating, microwave individual portions in a microwave-safe dish for 1-2 minutes, stirring halfway.
FAQs
Here are some common questions about the Spaghetti Squash Casserole Recipe that might help you out!
Can I make this Spaghetti Squash Casserole Recipe vegetarian?
Absolutely! You can easily omit the chicken or replace it with a plant-based protein like lentils or extra beans to keep it hearty and satisfying.
How do I know when my spaghetti squash is cooked properly?
When roasted, spaghetti squash should be tender enough that you can scrape out strands easily with a fork. If it’s still firm, it may need more time in the oven.
Can I use different types of cheese for this Spaghetti Squash Casserole Recipe?
Yes! Feel free to experiment with different cheeses like cheddar, pepper jack, or even a dairy-free alternative if you’re looking for a non-dairy option.
What can I serve with the Spaghetti Squash Casserole?
This dish pairs wonderfully with a fresh side salad or some avocado slices. You could also serve it alongside tortilla chips for some added crunch!
Final Thoughts
I hope you find joy in preparing this Southwest Spaghetti Squash Casserole Recipe as much as I do! It’s not just a meal; it’s an opportunity to gather around the table with loved ones and enjoy something wholesome together. Whether you’re meal prepping or whipping up dinner on a busy night, this recipe is sure to please everyone at your table. Happy cooking, and don’t forget to share your creations!
Spaghetti Squash Casserole
If you’re searching for a comforting and flavorful dish that is both nutritious and satisfying, look no further than this Spaghetti Squash Casserole Recipe. This hearty casserole features the unique texture of spaghetti squash combined with vibrant southwest flavors, making it an excellent choice for busy weeknights or family gatherings. With wholesome ingredients like chicken, black beans, and corn, this dish is not only delicious but also healthy, ensuring everyone leaves the table feeling fulfilled. Plus, it’s incredibly versatile—serve it as a main course or side dish—and easy to prepare ahead of time!
- Prep Time: 15 minutes
- Cook Time: 15 minutes
- Total Time: 30 minutes
- Yield: Serves approximately 4
- Category: Main
- Method: Baking
- Cuisine: Southwestern
Ingredients
- 1 spaghetti squash
- 2 teaspoons olive oil
- 1/4 cup green onions
- 1 jalapeño
- 3/4 cup black beans
- 1/2 cup frozen corn
- 1/2 pound cooked shredded chicken
- 1 teaspoon chili powder
- 1 teaspoon ground cumin
- 1 cup red enchilada sauce
- 1/2 cup shredded Monterey Jack cheese
Instructions
- Preheat your oven to 375°F.
- In a large skillet, heat olive oil over medium-high heat. Sauté green onions and jalapeño for about 2 minutes until fragrant.
- Stir in black beans, corn, chicken, chili powder, cumin, salt, and pepper. Mix well.
- Add spaghetti squash strands and enchilada sauce; combine thoroughly.
- Top with shredded cheese and bake for about 15 minutes until heated through and cheese is melted.
Nutrition
- Serving Size: 1 cup (240g)
- Calories: 320
- Sugar: 6g
- Sodium: 450mg
- Fat: 10g
- Saturated Fat: 3g
- Unsaturated Fat: 7g
- Trans Fat: 0g
- Carbohydrates: 37g
- Fiber: 8g
- Protein: 22g
- Cholesterol: 60mg
