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Spaghetti Squash Au Gratin


Tastes like a Potato Casserole without all the carbs!!!!

If you have not tried spaghetti squash... you are missing out! love it!

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Rate this recipe 4.4/5 (11 Votes)


  • 1 medium spaghetti squash
  • 3 tablespoons butter
  • 1 small yellow onion, very thinly sliced
  • 1 teaspoon red pepper flakes
  • 1/4 teaspoon garlic salt
  • Salt and pepper to taste
  • 3/4 cup sour cream
  • 1 cup shredded cheddar cheese



Step 1

Cut the spaghetti squash in half and remove the seeds. Place in a covered dish with a ¼ inch of water and microwave for 10 -12 minutes. In a medium sized skillet over medium heat, add the butter, onions, red pepper, garlic salt, salt and pepper and cook until the onions are brown in color.

Using a fork, scrape the insides of the squash and transfer to a small bowl.Mix the squash, onions, sour cream and half the cheese together and mix well. Transfer the mixture to a buttered baking dish and top with remaining cheese.

Place into a 375º for 20-25 minutes. Put on broil in the last minute until golden brown on top.

6 Servings

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