Spaghetti Squash Casserole Recipe
If you’re looking for a cozy meal that combines comfort with a healthy twist, let me introduce you to my favorite Spaghetti Squash Casserole Recipe. This dish is not only delicious but also filled with vibrant flavors and wholesome ingredients! It’s perfect for busy weeknights or family gatherings when you want to serve something satisfying without spending hours in the kitchen.
What makes this casserole so special is its heartiness and the way it brings everyone together around the table. The combination of spaghetti squash with tender chicken, black beans, and zesty enchilada sauce creates a delightful experience that will have your loved ones coming back for seconds (or thirds!). Trust me, once you try it, you’ll understand why this recipe has earned a special place in my heart.
Why You’ll Love This Recipe
- Easy to Prepare: With just a handful of simple steps, you can whip up this comforting casserole in no time.
- Family-Friendly Appeal: The cheesy goodness and flavorful ingredients make it a hit with both kids and adults.
- Make-Ahead Convenience: This dish is great for meal prep! Assemble it ahead of time and pop it in the oven when you’re ready to eat.
- Delicious Flavor: The combination of spices, beans, and enchilada sauce creates a rich taste that feels indulgent yet wholesome.
- Flexible Ingredients: Feel free to customize this recipe based on what you have at home!

Ingredients You’ll Need
You’re going to love how simple and wholesome these ingredients are! Each one plays a crucial role in creating the perfect balance of flavors in your Spaghetti Squash Casserole.
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
- Green onions
- Cilantro
Variations
One of the best parts about this Spaghetti Squash Casserole Recipe is its flexibility! Here are some fun ideas to switch things up:
- Swap the protein: If you’re looking for alternatives, try using cooked turkey or chickpeas instead of chicken!
- Add more veggies: Sneak in some diced bell peppers or zucchini for an extra dose of nutrients.
- Change the cheese: Experiment with different cheeses like pepper jack for a spicy kick or cheddar for a classic flavor.
- Spice it up: If you love heat, toss in some crushed red pepper flakes or additional jalapeños.
How to Make Spaghetti Squash Casserole Recipe
Step 1: Preheat Your Oven
Start by preheating your oven to 375° F. This ensures that your casserole bakes evenly and gets that lovely golden top.
Step 2: Sauté the Vegetables
In a large oven-safe skillet, heat the olive oil over medium-high heat. Once hot, add the green onions and jalapeño. Sauté them for about 2 minutes until fragrant. This step enhances their flavors and sets the base for your casserole.
Step 3: Mix in Other Ingredients
Add in the black beans, corn, shredded chicken, chili powder, cumin, granulated garlic, salt, and pepper. Stir everything together until well combined. Mixing these ingredients creates a flavorful filling that will be the star of your casserole!
Step 4: Combine with Spaghetti Squash
Now it’s time to add those spaghetti squash strands along with the enchilada sauce. Mix everything thoroughly so each strand is coated in those tasty flavors. Top it all off with shredded cheese—this will melt beautifully as it bakes!
Step 5: Bake It Up!
Pop your skillet into the preheated oven and bake for about 15 minutes or until warmed through and bubbly. You want that cheese melted to perfection! Once done, feel free to garnish with chopped tomatoes, cilantro, and green onions for an extra burst of freshness.
Enjoy making your own Spaghetti Squash Casserole—it’s sure to become a go-to favorite!
Pro Tips for Making Spaghetti Squash Casserole Recipe
Making the perfect spaghetti squash casserole is all about the little details, and I’m here to help you nail it!
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Choose a ripe spaghetti squash: Look for a squash that’s firm and has a vibrant yellow color. A fresh squash will yield better texture and flavor in your casserole.
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Don’t skip the seasoning: Properly seasoning each layer of your casserole is key to building flavor. Make sure to taste as you go, and adjust the salt and spices to suit your preferences.
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Use a mix of cheeses: While Monterey Jack is delicious, mixing it with other cheeses like cheddar or pepper jack can add depth to the flavor and give you that gooey texture everyone loves.
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Let it cool before serving: Allowing your casserole to rest for about 5 minutes before serving helps it set up nicely, making it easier to scoop out portions without falling apart.
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Experiment with toppings: Don’t be afraid to get creative with toppings! Sliced avocados, fresh cilantro, or even a dollop of Greek yogurt can enhance the dish and provide an extra layer of flavor.
How to Serve Spaghetti Squash Casserole Recipe
Serving your spaghetti squash casserole can be just as fun as making it! Here are some ideas to elevate your dining experience.
Garnishes
- Fresh cilantro: A sprinkle of freshly chopped cilantro adds a burst of color and freshness, enhancing the southwestern flavors.
- Sliced jalapeños: For those who love a bit of heat, add sliced jalapeños on top for an extra kick.
- Avocado slices: Creamy avocado complements the dish perfectly and adds a healthy fat component that balances the flavors.
Side Dishes
- Mexican Street Corn Salad: This vibrant salad combines corn, lime juice, cilantro, and chili powder for a refreshing side that pairs beautifully with the casserole.
- Simple Green Salad: A light salad with mixed greens, cherry tomatoes, cucumber, and a zesty vinaigrette offers a crisp contrast to the richness of the casserole.
- Quinoa Pilaf: Serving quinoa pilaf seasoned with herbs can provide an additional protein punch while staying within that delightful southwest theme.
- Roasted Veggies: Roasted bell peppers, zucchini, and red onion tossed in olive oil make for another colorful side that’s both healthy and hearty.
Enjoy creating this delightful dish! Your family will savor every bite of this wholesome spaghetti squash casserole recipe.

Make Ahead and Storage
This Southwest Spaghetti Squash Casserole is perfect for meal prep! It’s not only delicious but also keeps well, making it a great option for busy weeknights or when you want to enjoy leftovers.
Storing Leftovers
- Allow the casserole to cool completely before storing.
- Transfer leftovers to an airtight container.
- Store in the refrigerator for up to 3-4 days.
Freezing
- Let the casserole cool completely before freezing.
- Portion it into freezer-safe containers or use a large freezer bag.
- Label with the date and freeze for up to 2-3 months.
Reheating
- Thaw overnight in the refrigerator if frozen.
- Heat in a preheated oven at 350° F for about 20-25 minutes or until heated through.
- Alternatively, microwave individual portions on medium power until warm.
FAQs
Here are some common questions you might have about this recipe!
Can I use a different type of cheese in the Spaghetti Squash Casserole Recipe?
Absolutely! Feel free to substitute Monterey Jack cheese with any cheese you prefer, like cheddar or pepper jack for a little extra kick.
How can I make the Spaghetti Squash Casserole Recipe vegetarian?
To make this casserole vegetarian, simply omit the chicken and add more black beans or your favorite veggies like bell peppers or zucchini.
What can I serve with the Spaghetti Squash Casserole Recipe?
This dish pairs beautifully with a simple green salad or some homemade tortilla chips. You could also serve it with avocado slices for added creaminess.
Final Thoughts
I hope you find joy in preparing this Spaghetti Squash Casserole! It’s not just a meal; it’s an experience filled with vibrant flavors and comforting textures. Whether you’re cooking for yourself, family, or friends, this recipe is sure to be a hit. Enjoy every bite and happy cooking!
Spaghetti Squash Casserole
If you’re craving a warm and hearty meal that’s both nutritious and satisfying, this Spaghetti Squash Casserole Recipe is just what you need. This dish features roasted spaghetti squash combined with tender chicken, black beans, and zesty enchilada sauce, creating a delightful flavor profile that everyone will love. Perfect for busy weeknights or family gatherings, it offers the comfort of a classic casserole while maintaining a healthy twist. Easy to prepare and fully customizable, this recipe allows you to swap in your favorite ingredients, making it a versatile option for any occasion. Serve it hot from the oven with fresh toppings for an unforgettable dining experience!
- Prep Time: 15 minutes
- Cook Time: 15 minutes
- Total Time: 30 minutes
- Yield: Serves approximately 6 people 1x
- Category: Dinner
- Method: Baking
- Cuisine: Southwest
Ingredients
- 1 spaghetti squash
- 2 teaspoons olive oil
- 1/4 cup finely chopped green onions
- 1 jalapeño (finely chopped)
- 3/4 cup black beans
- 1/2 cup frozen corn
- 1/2 pound boneless skinless chicken breasts (cooked and shredded)
- 1 teaspoon chili powder
- 1 cup red enchilada sauce
- 1/2 cup shredded Monterey Jack cheese
Instructions
- Preheat your oven to 375°F.
- In a large oven-safe skillet, heat olive oil over medium-high heat. Sauté green onions and jalapeño for about 2 minutes until fragrant.
- Add black beans, corn, shredded chicken, chili powder, salt, and pepper. Stir until well combined.
- Mix in spaghetti squash strands and enchilada sauce until everything is evenly coated. Top with shredded cheese.
- Bake for about 15 minutes or until bubbly and golden.
Nutrition
- Serving Size: 1 cup (225g)
- Calories: 320
- Sugar: 4g
- Sodium: 610mg
- Fat: 10g
- Saturated Fat: 3g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 40g
- Fiber: 8g
- Protein: 24g
- Cholesterol: 75mg
