This Stuffed Spaghetti Squash with Chicken Sausage, ricotta and marinara sauce is cheesy and total comfort food. With only 30 minutes of hands on time and 45 minutes total time, it has be added to your weeknight dinner menu!

side view of cheesy stuffed spaghetti squash with cheese pull

Spaghetti Squash is one of my favorite winter squashes, and we have it pretty regularly. That’s why I am so shocked that I have never shared a stuffed spaghetti squash recipe here on the blog! That’s all going to change today my friends.

Ingredients for this Recipe

ingredients for stuffed spaghetti squash
  • 1 large spaghetti squash (about 3 ½ to 4 pounds)
  • 2 tablespoons extra virgin olive oil
  • 12 ounces cooked chicken sausages, red pepper or Italian flavor
  • 1 medium onion, chopped
  • 1 teaspoon dried oregano
  • ¾ teaspoon salt
  • 2 cup marinara sauce
  • ¼ cup chopped fresh basil, plus more for garnish
  • ¾ cup part skim ricotta cheese
  • 1 cup shredded Italian cheese blend

How To Make Stuffed Spaghetti Squash with Chicken Sausage and Ricotta

Cut the Spaghetti Squash

Cut the spaghetti squash in half lengthwise into two oval shaped halves. If you spaghetti squash is very hard, you can microwave it for 20 seconds to soften the skin slightly before trying to cut it in half.

scoop the seeds out of the center of the spaghetti squash halves

Use a spoon to scoop the seeds and stringy pulp from the center of the halves.

Cook the Spaghetti Squash in the Microwave

I cover all the details for How To Cook Spaghetti Squash in the Microwave in another post that you can read for more photos and information.

adding water to the casserole dish

Place cut side down side by side in a casserole dish and add one cup water.

the casserole dish with parchment and plastic covering it

Cover the casserole with parchment to prevent the plastic from touching the food. Cover with plastic wrap to seal in the steam.

  1. Microwave for 10 minutes.
  2. Press on the outer shell of the spaghetti squash to see if it gives with the pressure of your finger (caution it will be hot!)
  3. If it is still hard microwave in 5 minute intervals until it is softened.

Scrape Spaghetti Squash into strands

Carefully remove the plastic and parchment from the baking dish. There will be steam! Flip the squash over and test to make sure that the strands are tender by scraping with a fork.

scraping up strands of spaghetti squash with a fork

If only the outer layer is tender, return the casserole dish and squash to the microwave and cook in two minute intervals until it is fully tender all the way through to the shell.

Scrape fork in the same direction as the strands to form long thin strips. Use a kitchen spoon to scoop them out. For this recipe leave a 1/2 to 1/4 inch border of unscraped squash along the shell to help the squash halves hold their shape.

Make The Filling

While you are cooking the spaghetti squash, make the filling.

the onions and sausage are browning in the skillet

Cut the sausage into half moons. Then sauté the sausage with the onion and oregano to get a little color on them.

add the marinara sauce to the skillet

Stir in in the sauce. Remove the skillet from the heat.

stirring the spaghetti squash and basil into the chicken sausage and marinara

Once the spaghetti squash is done cooking, add the strands to the chicken filling and the chopped basil. Stir it together to combine everything.

Make Spaghetti Squash Boats

the filling back in the shells

Spoon the filling back into the shells, dividing evenly. They will be full!

the ricotta dotted on top of the filling

Top them with the ricotta cheese. I don’t spread it around because it looks messy. Instead I spoon it in dollops on the top. As it cooks it will sort of spread on its own.

the shredded cheese on top

Add the cheese on top and then pop it back in the microwave to cook the cheeses. It will take three to four minutes to heat them through again and melt the cheeses. Top with more basil if you like.

How To Make This Recipe In The Oven

  1. Set the squash halves in the baking dish and add water as directed, but do not cover with parchment or plastic wrap.
  2. Bake for 1 hour at 350 degrees F. Make sure the water doesn’t evaporate and add more if necessary.
  3. Test for doneness in the same manner as described above.
  4. To melt the cheese in the final step, bake for 5 to 7 minutes. 
side view of the stuffed spaghetti squash with a scoop removed

What To Serve With This Recipe

This is pretty filling on its own, but if you like to have something along side of this meal, you can make a salad. One of my favorites is this Chopped Winter Salad. Or for an even lighter option this Simple Skinny Cucumber Salad is very low in calories but serves as a nice fresh contrast to the squash boats.

You can make homemade Whole-wheat bread and serve that on the side as well. If you are gluten-free you could make Teff bread.

More Spaghetti Squash Recipes

Thanks so much for reading! If you make this recipe for Stuffed Spaghetti Squash with Chicken Sausage and Ricotta let me know by leaving a star rating and review!

Happy Cooking!

~Katie

Print

Stuffed Spaghetti Squash

  • Author: Katie
  • Prep Time: 30 minutes
  • Cook Time: 35 minutes
  • Total Time: 45 minutes
  • Yield: 4 servings 1x
  • Category: Main Course
  • Method: Microwave
  • Cuisine: American

Description

This Stuffed Spaghetti Squash with ricotta, marinara, cheese and chicken sausage is a lower carb alternative to pasta, but still cheesy and comforting! It only takes 30 minutes of hands on time and is ready in under an hour!


Scale

Ingredients

1 large spaghetti squash (about 3 ½ to 4 pounds)

2 tablespoons extra virgin olive oil

12 ounces cooked chicken sausages, red pepper or Italian flavor

1 medium onion, chopped

1 teaspoon dried oregano

¾ teaspoon salt

2 cup marinara sauce

¼ cup chopped fresh basil, plus more for garnish

¾ cup part skim ricotta cheese

1 cup shredded Italian cheese blend


Instructions

1.     Cook Spaghetti Squash: Cut spaghetti squash in half. Scoop out seeds and place cut side down side by side in a casserole dish. Add 1 cup water. Cover with a layer of parchment and then plastic wrap. Microwave for 10 minutes. Press on the outer shell of the spaghetti squash to see if it gives with the pressure of your finger (caution it will be hot!) If it is still hard microwave in 5 minute intervals until it is softened.

2.     Test For Doneness: Carefully remove the plastic and parchment and flip the spaghetti squash over. Test that it is done by lifting up the strands of spaghetti squash with a fork. If there it doesn’t pull into strands easily, microwave in 2 minute intervals until it is done.

3.     Meanwhile, heat oil in a large skillet over medium heat. Add sausage, onion, oregano and salt and cook, stirring occasionally until the onion is softened and browned, about 7 minutes. Stir in sauce and remove from the heat.

4.     Scrape the spaghetti squash strands with a fork. Scoop them out with a spoon into the skillet. Leave a ¼-inch to ½-inch layer of un-scooped strands on the shell to help the squash halves retain their shape.

5.     Stir the squash “noodles” and basil into the chicken sausage mixture and then return the spaghetti squash mixture to the shells. Top with dollops of the ricotta cheese. Top with the Italian cheese blend, dividing between the two squash halves.

6.     Microwave uncovered until the stuffed spaghetti squash is bubbling hot and the cheese is melted, 3 to 4 minutes. Serve sprinkled with basil if desired. 


Notes

To make this vegetarian

Substitute vegetarian sausage for the chicken sausage or omit all together. 

To make this in the oven:

Set the squash halves in the baking dish and add water as directed, but do not cover with parchment or plastic wrap. Bake for 1 hour at 350 degrees F. Test for doneness in the same manner as described above. To melt the cheese in the final step, bake for 5 to 7 minutes. 


Nutrition

  • Serving Size: 2 cups
  • Calories: 422
  • Sugar: 12 g
  • Fat: 22 g
  • Saturated Fat: 5 g
  • Carbohydrates: 34 g
  • Fiber: 8 g
  • Protein: 27 g