5 from 3 votes
Spaghetti Squash Alfredo is delicious as a side dish or as a meal all by itself.
Spaghetti Squash Alfredo
Prep Time
20 mins
Cook Time
1 hr
Total Time
1 hr 20 mins

Baked spaghetti squash with a cheesy Alfredo sauce.

Course: Entree, Side Dish, Vegetable
Cuisine: American, Italian
Keyword: recipes with spahetti squash, spaghetti squash with alfredo sauce, spaghetti squash with cheese
Servings: 6 people
Calories: 503 kcal
Author: Kathy
  • 1 Spaghetti Squash
Alfredo Sauce
  • 2 tablespoons olive oil
  • 2 cloves garlic minced
  • 2 cups heavy cream
  • 2 cups Parmesan cheese grated
  • 1/4 teaspoon pepper
  • 1/8 teaspoon nutmeg
  • 1/8 teaspoon salt optional
  • 2 Tablespoons Parmesan cheese grated
  1. Slice spaghetti squash in half lengthwise.  Scrape out seeds.  Place face down on a baking sheet. Bake in a preheated 375 degree oven for 30 minutes. 

  2. Remove from oven and let cool. Use a fork to remove the strands of squash and place into a bowl. Leave a small amount in the shell so the shell isn't too flimsy. 

  3. Place shells right side up on a baking sheet. Set aside.

Alfredo Sauce
  1. In a sauce pot, add olive oil and garlic over medium low heat. Just heat the garlic through so it turns fragrant, but do not brown.

  2. Add the heavy cream.  Heat until just before the cream comes to a boil. Stir cream often to prevent scorching.

  3. Whisk in Parmesan cheese. Add pepper and nutmeg. Taste to see if salt is needed. I often find the Parmesan cheese salty enough and don't add any additional salt. 

  4. Continue cooking over low heat, while stirring, until the sauce thickens slightly. Remove from heat. 

  5. Pour Alfredo sauce over strands of spaghetti squash. Stir so the sauce is evenly distributed.

  6. Divide squash into two shells.  Sprinkle with additional Parmesan cheese.

  7. Level shells on tray with a coil of foil placed around the base of each shell. If the shells are not level, the sauce will spill out while baking. 

  8. Bake in a preheated 375 degree oven for 30-35 minutes until the sauce is bubbly and browned on top. 

Nutrition Facts
Spaghetti Squash Alfredo
Amount Per Serving
Calories 503 Calories from Fat 387
% Daily Value*
Fat 43g66%
Saturated Fat 24g150%
Cholesterol 132mg44%
Sodium 666mg29%
Potassium 263mg8%
Carbohydrates 14g5%
Fiber 2g8%
Sugar 4g4%
Protein 15g30%
Vitamin A 1635IU33%
Vitamin C 4.2mg5%
Calcium 505mg51%
Iron 0.8mg4%
* Percent Daily Values are based on a 2000 calorie diet.