Go Back
+ servings
baked spaghetti squash

Spaghetti Squash Au Gratin

Spaghetti Squash Au Gratin. This amazing easy spaghetti squash recipes is cheesy and amazing. It is always a crowd pleaser when I make it!
Course Dinner, Side Dish
Cuisine American
Keyword Low Carb Spaghetti Squash, Spaghetti Squash Au Gratin
Prep Time 5 minutes
Cook Time 50 minutes
Total Time 55 minutes
Servings 6 servings
Calories 295kcal
Author Lauren


  • 1 medium spaghetti squash
  • 1 pound chicken breast
  • 1 medium onion diced
  • 2 tbsp butter
  • 2 cloves garlic grated
  • 3/4 cup plain greek yogurt or sour cream
  • 1 1/3 cup cheddar cheese
  • 1/2 tsp salt
  • 1/2 tsp black pepper


  • Preheat oven to 375 degrees.
  • Cut squash in half and scoop out the seeds with a spoon. Season the spaghetti squash with a little bit of olive oil, salt and pepper.
  • Lay skin side down on a rimmed sheet pan that is lined with aluminum foil.
  • Cut your chicken breast so you have four pieces of chicken. Place the chicken on the sheet pan, season with salt and pepper.
  • Bake for 45 mins or until cooked to a touch with a fork. When the squash is cooked Scrape the flesh with a fork to create noodles and dice your chicken in to small pieces.
  • While the chicken and squash are cooking place the onions with the butter in a pan on the stove over medium low heat until very soft.
  • Once everything is cooked combine the spaghetti squash noodles, chicken, onion, yogurt, 1 cup of the cheese, salt and pepper in a large bowl.
  • Place the mixture back into the empty shells and top with the cheeses and place under the broiler until golden brown.



This recipe makes 6 servings if you are making it as a side dish and 2 servings if you are making it as a full meal item. 
If you are strict Keto then you can use sour cream instead of the greek yogurt.


Calories: 295kcal | Carbohydrates: 14g | Protein: 26g | Fat: 15g | Saturated Fat: 8g | Cholesterol: 86mg | Sodium: 508mg | Potassium: 539mg | Fiber: 3g | Sugar: 6g | Vitamin A: 586IU | Vitamin C: 6mg | Calcium: 255mg | Iron: 1mg