Southwest Spaghetti Squash Casserole

4.38 from 430 votes

This post may contain affiliate links. Please read our disclosure policy.

Southwest Spaghetti Squash Casserole is loaded with chicken, black beans, corn, enchilada sauce and topped with gooey melted cheese! A delicious and easy to make casserole that’s gluten-free and a lower carb alternative to pasta or rice.

Southwest Spaghetti Squash Casserole is loaded with chicken, black beans, corn, enchilada sauce and topped with gooey melted cheese! A delicious and easy to make casserole that's gluten-free and a lower carb alternative to pasta or rice. #spaghettisquash #casserole #mexicanfood #chicken #glutenfree #lowcarbIt’s been a minute since I made a new recipe using spaghetti squash or even eaten it. I’ve had one sitting in my pantry for probably a month and finally decided I better use it before it went bad. Instead of stuffing each half of the squash with a delicious filling, I decided to make it more like a casserole or skillet recipe, which you all seem to love. 

Since Southwest cuisine is high on my list of favorites it only seemed fitting that I make a Southwest Spaghetti Squash Casserole. You guys, this casserole does not disappoint and there’s nothing to feel guilty about while eating it!

Southwest Spaghetti Squash Casserole is loaded with chicken, black beans, corn, enchilada sauce and topped with gooey melted cheese! A delicious and easy to make casserole that's gluten-free and a lower carb alternative to pasta or rice. #spaghettisquash #casserole #mexicanfood #chicken #glutenfree #lowcarbCasseroles often get a bad reputation for being heavy and full of ingredients that are questionable, canned soup is definitely questionable in my opinion. It’s jiggly and makes a gross slurping, burping, suction noise as it falls out of the can. Why?! And how can it be shelf stable for so dang long?!

Luckily, you don’t have to worry about jiggly canned soups in this Southwest Spaghetti Squash Casserole or any questionable ingredients. What you will find are black beans, chicken, corn, onion, a jalapeño, enchilada sauce, a couple spices that are staples in Southwest cuisine, the spaghetti squash and of course I had to top it with some cheese. 

Southwest Spaghetti Squash Casserole is loaded with chicken, black beans, corn, enchilada sauce and topped with gooey melted cheese! A delicious and easy to make casserole that's gluten-free and a lower carb alternative to pasta or rice. #spaghettisquash #casserole #mexicanfood #chicken #glutenfree #lowcarbOnce the spaghetti squash has roasted, the rest of the preparation takes place in a skillet and then the whole thing is baked in the oven. Minimal dish washing is a must when I’m cooking. If you don’t have time to bake it, simply add the cheese on top and loosely cover the skillet with a lid or piece of foil until the cheese melts.

Southwest Spaghetti Squash Casserole is loaded with chicken, black beans, corn, enchilada sauce and topped with gooey melted cheese! A delicious and easy to make casserole that's gluten-free and a lower carb alternative to pasta or rice. #spaghettisquash #casserole #mexicanfood #chicken #glutenfree #lowcarbThe Southwest Spaghetti Squash Casserole is great for meal prep, but I don’t recommend freezing the leftovers. Spaghetti squash isn’t the most freezer friendly vegetable.

How Do I Make This Vegetarian?

If you want to make this a vegetarian recipe, simply eliminate the chicken and add in more black beans, corn or another vegetable of your choice. You could also add a vegetarian meat alternative.

Southwest Spaghetti Squash Casserole is loaded with chicken, black beans, corn, enchilada sauce and topped with gooey melted cheese! A delicious and easy to make casserole that's gluten-free and a lower carb alternative to pasta or rice. #spaghettisquash #casserole #mexicanfood #chicken #glutenfree #lowcarb

More Spaghetti Squash Recipes

Cheesy Chicken and Broccoli Stuffed Spaghetti Squash | Spaghetti squash stuffed with a creamy, cheesy, chicken and broccoli filling and topped with more cheese! A great gluten free, low carb comfort food dinner!Cheesy Chicken and Broccoli Stuffed Spaghetti Squash

Green Chile Chicken Enchilada Stuffed Spaghetti Squash | You won't miss the tortillas, carbs or time spent rolling up the enchiladas when you make this Green Chile Chicken Enchilada Stuffed Spaghetti Squash!Green Chile Chicken Enchilada Stuffed Spaghetti Squash

Turkey and Spinach Spaghetti Squash Lasagna | Skip the noodles and make this lighter, lower carb and healthier version of lasagna!Turkey and Spinach Spaghetti Squash Lasagna

4.38 from 430 votes

Southwest Spaghetti Squash Casserole

Prep: 20 minutes
Cook: 20 minutes
Total: 40 minutes
Servings: 4 servings
Southwest Spaghetti Squash Casserole is loaded with chicken, black beans, corn, enchilada sauce and topped with gooey melted cheese!
Save this recipe!
Get this sent to your inbox, plus get new recipes from us every week!
Please enable JavaScript in your browser to complete this form.

Ingredients 

  • 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 jalapeรฑo, 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
  • chopped tomatoes, green onions, and cilantro for toppings

Instructions 

  • Preheat oven to 375ยฐ F.
  • In a large oven safe skillet, heat the olive oil over medium-high heat. When the skillet is hot add in the green onion and jalapeรฑo. Sautรฉ for 2 minutes then add in the black beans, corn, shredded chicken, chili powder, cumin and garlic powder. Season with salt and pepper and stir together until combined.
  • Add in the spaghetti squash strands and enchilada sauce. Stir together until combined and top with the shredded cheese. Bake for 15 minutes or until warmed through and the cheese is melted. Top with chopped tomatoes, cilantro and green onions if desired.

Nutrition

Calories: 304kcalCarbohydrates: 36gProtein: 22gFat: 10gSaturated Fat: 4gPolyunsaturated Fat: 1gMonounsaturated Fat: 3gTrans Fat: 0.01gCholesterol: 49mgSodium: 786mgPotassium: 703mgFiber: 9gSugar: 11gVitamin A: 1099IUVitamin C: 10mgCalcium: 185mgIron: 3mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Tried this? Leave a comment below!

You May Also Like...

Get new recipes sent to your inbox!
Subscribe to get new recipes first!
Please enable JavaScript in your browser to complete this form.
4.38 from 430 votes (430 ratings without comment)

Leave a comment

Your email address will not be published. Required fields are marked *

Recipe Rating




32 Comments

  1. Belinda says:

    I absolutely love this recipe! I’ve made it several times, just adjusting a few ingredients for our personal tastes. It’s so yummy, so much flavor. Great way to make spaghetti squash, thank you!

    1. Danae says:

      So happy to hear you like the casserole! It’s one of my favorite spaghetti squash recipes.

  2. Wendy V says:

    I loved this recipe! How can I store the leftovers? Can I freeze them?

  3. Thomas James says:

    Look yummy! One of my favorite Southwest Spaghetti Squash Casserole, nice to see your recipe, easy to follow, will cook this for family this weekend. Thanks you!

  4. Rebecca says:

    This was delicious!!!! My husband loved it too, and heโ€™s picky when I try any kind of healthy substitutions. Looking forward to enjoying these leftovers and will definitely be making this again!!!!!! T

    1. Danae says:

      It’s one of the few spaghetti squash recipes I can get my husband to eat Rebecca (also a picky one), glad it was a success!

  5. Richard says:

    I added chopped red bell pepper, and substituted my homemade purple tomatillo salsa for the red enchilada sauce. Oh, my! Delicious! This recipe is a keeper, pretty quick and easy.