A delicious Butternut Squash Baked Spaghetti casserole, made with spiralized butternut squash instead of pasta. This healthy butternut casserole is filled with a veggie and sausage sauce and layered with cheese.
A Delicious Butternut Squash Casserole
My spiralizer is one of my most “worth it” kitchen investments. With as often as I use it, I paid pennies per use.
In the winter, I make hot zoodles and butternut squash noodles. Pushing a squash through a spiralizer isn’t the easiest task, but it’s so worth it! Read more on how to make these delicious veggie noodles here.
The baked butternut squash noodles in this casserole give it a fun texture, and a lot of roasted sweetness. I like to bake the noodles until they are a little browned, and then I save some noodles to place around the edges of the casserole so they brown and crisp while baking. The crispy bits are always the best part, right?
Ingredients in Baked Butternut Spaghetti
- Butternut Squash – I use just the end that’s solid (cut the seed part off), so I use 2 small squashes or 1 large squash, and then save the ends for another night to roast.
- Olive oil
- Bell peppers (I use orange)
- Tomato basil sauce – be sure to check the label and buy a sugar free option.
- Jones Dairy Farm All Natural No Antibiotics Ever Golden Brown Chicken Sausage
- Cheese – I used mozzarella and parmesan for extra cheesy flavor! This is optional and the casserole is Whole30 without the cheese.
If healthier, cheesy casseroles are your thing, definitely check out my Lightened Up Chicken Cordon Bleu Casserole as well.
How to Make a Butternut Spaghetti Casserole
- First, make the butternut noodles by cutting the solid end off a butternut squash (or two small squashes), and peeling it. Put it in a spiralizer, and make long curly squash noodles. Spray the noodles with avocado oil spray and toss to coat. Bake the noodles for 15 minutes, until just starting to brown.
- Prepare a rich and delicious sausage and veggie sauce next. Saute the onions and peppers, add a marinara sauce, and then load it up with zucchini, olives, and sausage.
- Layer a casserole dish with butternut squash noodles, sausage and veggie sauce, and cheese. There is enough space to put 2 layers of each in, ending with a nice cheesy topping.
- Bake the casserole 35-40 minutes, and serve hot.
Sausage and Veggie Spaghetti Sauce
This casserole is loaded with veggies, and has great flavor and protein from Jones Dairy Farm All Natural No Antibiotics Ever Golden Brown Chicken Sausage.
You know I am a fan of Jones Dairy Farm — I always have their products in my freezer. Often, it is just frying up some bacon or all natural sausage along with our breakfasts, but I also love using the bacon and sausage for our protein at dinners. The products are just so convenient to have on hand.
The No Antibiotics Ever Golden Brown line are among my favorites. This line of all natural sausage contains no sugar, and is Certified Paleo and gluten free. They have amazing flavor, and are precooked so all I have to do is brown them and then toss them in to whatever I am making. This month, it’s been all about rich tomato sauces, like this healthy sausage and veggie sauce.
Layer a Baked Spaghetti Casserole
After preparing the butternut squash noodles and the sausage and veggie sauce, you can either just top the “noodles” with the sauce, or go all out and make this a fun casserole the whole family will dive in to. I vote casserole!
This casserole is easily made dairy free and Whole30 (the all natural sausage is sugar free and compliant!) by omitting the cheese — but if you don’t have those restrictions, add in the cheese! It really makes this a fun dinner. Plus, the cheese lightly browns and the noodles get a little crispy on top, making this irresistible!
Variations for Butternut Spaghetti Casserole
- Save Time: Skip the casserole, and just layer the sauce over the butternut squash noodles. Another option is to buy prepared butternut noodles, which are becoming more and more available!
- Lower the Carbs: If you’ve been slashing the carbs, you can lower the carb count of this dish by swapping in zucchini noodles in place of the butternut squash. Don’t cook the zucchini noodles before using them in the casserole. If I did that, I would double up on the sausage to add an extra punch of protein.
Other Butternut Squash Recipes
- Butternut Lasagna, by Sunkissed Kitchen
- Butternut, Black Bean and Spinach Enchiladas, by Sunkissed Kitchen
- Butternut, Millet and Spinach Salad, by Sunkissed Kitchen
- SW Quinoa and Butternut Soup, by Sunkissed Kitchen
Butternut Turkey Baked “Spaghetti” (Grain Free)
- 1/2 butternut squash large, the solid end (or 2 small squashes)
- 1/2 tablespoon olive oil
- sea salt and black pepper to taste
Turkey Spaghetti Sauce
- 1/2 tablespoon olive oil
- 1 cup onion chopped
- 2 bell peppers 1 used 1 green, 1 red, chopped
- 7 ounces Jones Dairy Farm All Natural No Antibiotics Ever Golden Brown Chicken Sausages
- 1 25 ounce tomato basil sauce diced
- 2 cups zucchini chopped, 1 medium zucchini
- 1 15 ounce can black olives sliced
- 1 cup mozzarella cheese shredded
- 1 cup parmesan cheese shredded
- 1/2 cup parsley chopped finely, optional, garnish
- Preheat oven to 425 degrees Fahrenheit.
- Spiralize butternut squash with the larger noodle blade. (I recommend the OXO Sprializer ).
- Place "noodles" on a large cookie sheet, drizzle with olive oil, and lightly season with sea salt and pepper.
- Use your hands to spread the oil around the noodles. Bake for 15 minutes, until softened but still slightly underdone.
- While the noodles are baking, prepare spaghetti sauce.
- Brown sausage in a skillet for about 10 minutes over medium high heat, then remove from pan and slice.
- In the same skillet, add olive oil and minced onion. Saute for 5-10 minutes over medium-high heat, until onions are translucent.
- Add bell peppers, and continue to cook for another 5 minutes.
- Add the tomato basil sauce, olives, and zucchini, and continue to simmer for 10 minutes. Remove from heat and set aside. Resist the urge to "thin" out the sauce- you will want it really thick so you can "slice" the casserole.
- In a large baking dish (I used an rounded rectangular 10 x 8 inch baking pan, and this recipe perfectly fills it), begin by layering in 1/2 of the butternut noodles.
- On top of the noodles, layer 1/2 of the sausage sauce, followed by 1/2 of the cheese.
- Add 1 more layer of noodles, sauce, and cheese.
- If baking the dish right away, bake it in the still heated oven for 30 minutes, covered (until the sauce is bubbling). Uncover the dish, and lightly brown the cheese, 5-10 additional minutes.
- The dish can also be made ahead and baked up to a day later. If the dish has full cooled prior to baking, preheat oven to 425 degrees Fahrenheit, and bake for 45-55 minutes covered (until sauce is bubbling). Remove the cover, and brown the cheese for an additional 5-10 minutes.
- Garnish with parsley, and allow to "set" for 10-15 minutes if you want the slices to come out nicely. When it's very hot, the slices won't hold as well.