Skip to Content

Spaghetti Squash Au Gratin Recipe

152 Shares
Cheesy, bubbly, and creamy spaghetti squash au gratin is the best side dish ever!
Spaghetti Squash Au Gratin Recipe (2)

I don’t know about you, but I always have a hard time thinking about what side dishes to make. Save this one because this Spaghetti Squash Au Gratin Recipe is to die for and you can serve it alongside any chicken or meat entree. It is super easy to make and only requires a few simple ingredients.

Spaghetti Squash Au Gratin Recipe (2)

What Goes Into a Spaghetti Squash Au Gratin Casserole?

To make this tasty side dish, you will need:

  • Spaghetti squash
  • Onion
  • Butter
  • Red pepper flakes
  • Garlic powder
  • Salt and pepper
  • Sour cream
  • Shredded cheddar cheese

How Do I Make Spaghetti Squash Au Gratin?

  1. Start by preheating the oven to 375 F.
  2. Cut the squash in half, remove the seeds and place it in a baking dish. Pour about ¼ inch of water into the dish, cover with plastic wrap, and microwave for 8-10 minutes or until fully cooked. You might need to check it periodically to check for doneness.
  3. Wait until it is cool enough to handle, and remove the flesh from the squash using a fork, creating spaghetti-like strands. Place these strands into a bowl.
  4. Heat a skillet over medium-high heat and melt the butter. Saute the sliced onions in the melted butter until slightly brown (about 3-4 minutes).
  5. Add the sauteed onions to the bowl with the squash, along with the red pepper flakes, garlic powder, sour cream, salt, pepper, and half of the shredded cheddar. Mix well and spoon into a greased 8-inch square baking dish.
  6. Sprinkle the remaining half of the cheese evenly on top and bake for 20 mins.
  7. After 20 minutes, broil for 2-5 minutes or until slightly brown on top.

Spaghetti Squash Au Gratin Recipe (2)

Recipe Variations:

To add more color and flavor to this dish:

  • Add chopped red bell pepper and minced garlic
  • Use Gruyere cheese instead of cheddar
  • Mix bread crumbs with the shredded cheese for a crunchy topping
  • Crumbled cooked bacon is a great addition
  • Try adding cubed ham

Other Side Dish Recipes For You:

  • Our Favorite Mushroom Rice
  • Easy Fried Rice Recipe
  • Garlic Butter Rice Recipe
  • Bombay Potatoes Recipe
  • Homemade Scalloped Potatoes

Spaghetti Squash Au Gratin Recipe (2)

Spaghetti Squash Au Gratin Recipe (2)

Spaghetti Squash Au Gratin Recipe

Cheesy, bubbly, and creamy spaghetti squash au gratin is the best side dish ever!
5 from 1 vote
Print Pin Rate
Course: Dinner, Main Course
Cuisine: American
Prep Time: 10 minutes
Cook Time: 25 minutes
Total Time: 35 minutes
Servings: 10
Calories: 115kcal

Ingredients

  • 1 medium-sized spaghetti squash
  • 1 medium yellow onion, thinly sliced
  • 3 tbsp butter
  • 1 tsp red pepper flakes
  • 1 tsp garlic powder
  • Salt and pepper to taste
  • 1 cup sour cream
  • 1 cup freshly shredded sharp cheddar cheese

Instructions

  • Start by preheating the oven to 375 F.
  • Cut the squash in half, remove the seeds and place it in a baking dish. Pour about ¼ inch of water into the dish, cover with plastic wrap, and microwave for 8-10 minutes or until fully cooked. You might need to check it periodically to check for doneness.
  • Wait until it is cool enough to handle, and remove the flesh from the squash using a fork, creating spaghetti-like strands. Place these strands into a bowl.
  • Heat a skillet over medium-high heat and melt the butter. Saute the sliced onions in the melted butter until slightly brown (about 3-4 minutes).
  • Add the sauteed onions to the bowl with the squash, along with the red pepper flakes, garlic powder, sour cream, salt, pepper, and half of the shredded cheddar. Mix well and spoon into a greased 8-inch square baking dish.
  • Sprinkle the remaining half of the cheese evenly on top and bake for 20 mins.
  • After 20 minutes, broil for 2-5 minutes or until slightly brown on top.

Notes

  1. Shred your own cheese. Pre-shredded cheese has anti caking ingredients added and doesn’t melt as good as freshly grated.
  2. Check on the squash every minute after the 6 min mark.
  3. Be gentle when scraping the flesh off the squash to preserve the strands.
PIN THIS AMAZING SIDE DISH RECIPE NOW!

Nutrition

Calories: 115kcal | Carbohydrates: 11g | Protein: 8g | Fat: 5g
152 Shares
Recipe Rating