Cheesy Spaghetti Squash Casserole

I really enjoy pasta. Ok. Who am I kidding. I OBSESS over pasta. But those carbs never agree with my diet. And who doesn’t love the creaminess of Alfredo sauce? Am I right? This Cheesy Spaghetti Squash Casserole delivers all that creamy goodness, in a low calorie, low carb fashion.
For those of you not familiar with spaghetti squash, it is a  fun squash, that when steamed or roasted, shreds up just like pasta. {I’ll show you in the directions}  Both of my girls thought they were eating pasta!
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The light Alfredo sauce I used was only 45 cals, 3 grams of fat and 4 grams of carbs. Then using skim milk mozzarella cheese, one serving of this meal was about 175 calories. Whoop Whoop! Compared to the usual 700 calorie per serving pasta dish, I say this is a WINNER!
Cheesy Spaghetti Squash Casserole
NOTE: before getting started, remember to clean your squash using my easy peasy technique 🙂
- Place squash on a rimmed baking sheet. Make 2-3 vents in the squash by poking deep slits with a sharp knife. Bake in oven for 60-65 minutes at 350 degrees. Remove from oven and let rest for 10-15 minutes.

- Cut squash in half, length wise, and scoop out seeds.
- With a fork, shred the inside of the squash, forming your “spaghetti noodles”. Season with a little salt and pepper.
- Now add in 1/4 cup of Alfredo sauce to each squash half. Mix well until all your squash noodles are covered. Top with 1/3 cup of shredded cheese.
- Place squash under the broiler for 2-3 minutes until bubbly and melted.


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Cheesy Spaghetti Squash Casserole
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Ingredients
- 2 spaghetti squash
- 1 15 oz Light Alfredo Sauce
- 1 1/3 cups shredded mozzarella cheese
- salt and pepper to taste.
Instructions
- Place squash on a rimmed baking sheet. Make 2-3 vents in the squash by poking deep slits with a sharp knife. Bake in oven for 60-65 minutes at 350 degrees. Remove from oven and let rest for 10-15 minutes.
- Cut squash in half, length wise, and scoop out seeds.
- With a fork, shred the inside of the squash, forming your "spaghetti noodles". Season with a little salt and pepper.
- Now add in 1/4 cup of Alfredo sauce to each squash half. Mix well until all your squash noodles are covered. Top with 1/3 cup of shredded cheese.
- Place squash under the broiler for 2-3 minutes until bubbly and melted.
Video
Nutrition
Nutritional Disclaimer: Family Fresh Meals is not a dietician or nutritionist, and any nutritional information shared is only an estimate. We recommend running the ingredients through an online nutritional calculator if you need to verify any information.
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Post updated August 2020


Wonder how this would taste with spaghetti sauce instead of Alfredo (and soy cheese)?
I make one with spaghetti sauce too! So yummy. I actually do many variations. I’ll work on getting those recipes posted!
This was my first meal with spaghetti squash and it was a hit!! I went a head and put more alfredo sauce since there was not much left over and the squashes seemed a lot bigger inside than I imagined. The only thing is that when we cut in half it was hard (had never seen one open before to be honest) to determine what was seed/pulp and flesh. I felt I was wasting trying to fish out the seeds….New easy great dish and I will probably pair with your crockpot suggestion for cooking and skip using the oven for a whole hour. Thank you for the recipe.
I’ve only had spaghetti squash with tomato sauce; I’m loving this creamy, cheesy spaghetti squash!
I scooped out the “spaghetti” from one squash, mixed with 1/2 jar of Light Alfredo Sauce and put in 9×13 glass casserole dish; steamed a bag of broccoli and put in a bowl with chunks of leftover chicken and the rest of the Alfredo Sauce; put the broccoli and chicken combo on top of the spaghetti squash and sprinkled about a cup of low fat Mozzarella and baked for about 20 minutes in a 350 degree oven. Hubby and I loved it!
Thanks for the recipe. My husband and I really enjoyed it. YUM