Cheesy Spaghetti Squash Au Gratin – Low Carb Dinner Idea

I’ve always loved comfort food, but I also enjoy keeping my meals lighter and healthier. That’s why I created this Cheesy Spaghetti Squash Au Gratin recipe. The first time I tried making it, I was amazed at how satisfying a low-carb dinner could be without compromising flavor. The golden, bubbly cheese topping perfectly complements the tender strands of spaghetti squash, creating a dish that feels indulgent yet wholesome. Every bite is rich, creamy, and packed with warmth—an ideal way to enjoy a cozy dinner at home.

You will love this recipe because it combines simplicity, versatility, and hearty flavors. The creamy cheese sauce melts into the spaghetti squash perfectly, creating a luxurious texture that feels like a classic gratin, yet it’s surprisingly light. Even if you are not used to cooking with spaghetti squash, you’ll find that this recipe is approachable and forgiving. Whether you’re preparing a weeknight dinner or a dish for guests, it always impresses.

This recipe is versatile. You can adjust the types of cheese to suit your taste or swap in your favorite vegetables for added variety. It pairs beautifully with roasted chicken, turkey bacon, or even a fresh salad on the side. Its comforting and creamy nature makes it a great side dish or a satisfying main course for anyone following a low-carb or keto-friendly lifestyle.

It is also affordable. Spaghetti squash is budget-friendly, and the other ingredients—cheese, chicken ham, and seasonings—are commonly found in most kitchens. This dish proves that delicious, wholesome meals don’t have to be expensive or complicated.

Ingredients:

  • 1 medium spaghetti squash

  • 1 tablespoon olive oil

  • 1 cup cooked chicken ham, diced

  • 1/2 cup cooked turkey bacon, crumbled

  • 1 cup shredded cheddar cheese

  • 1/2 cup grated Parmesan cheese

  • 1/2 cup heavy cream or unsweetened plant-based cream

  • 2 cloves garlic, minced

  • 1/2 teaspoon salt

  • 1/4 teaspoon black pepper

  • 1/4 teaspoon paprika

  • 2 tablespoons chopped fresh parsley

How to Prepare Cheesy Spaghetti Squash Au Gratin

Preparing this Cheesy Spaghetti Squash Au Gratin is easier than you might think, and the results are truly rewarding. The process begins with selecting a medium spaghetti squash. Look for one that is firm, evenly colored, and free of soft spots. This ensures the squash will cook evenly and produce tender, spaghetti-like strands. Once you’ve chosen your squash, preheat the oven to 400°F (200°C).

Start by carefully cutting the squash in half lengthwise. Use a sturdy knife and work on a stable surface. Remove the seeds with a spoon and discard them or save them for roasting later. Brush the inside of each half with olive oil and sprinkle a pinch of salt and black pepper. Place the squash halves cut-side down on a baking sheet lined with parchment paper. Roast for about 35-40 minutes, or until the flesh is tender and easily separates with a fork.

While the squash is roasting, prepare the cheese sauce. In a medium saucepan over medium heat, combine the heavy cream, minced garlic, and shredded cheddar cheese. Stir constantly to prevent the cheese from clumping. Once the cheese is fully melted and smooth, add the grated Parmesan cheese, paprika, and a little more salt and pepper to taste. Remove from heat and set aside.

Next, prepare the turkey bacon and chicken ham. Cook the turkey bacon in a skillet over medium heat until crisp, then crumble it into small pieces. Dice the chicken ham into bite-sized cubes. These ingredients add a savory, smoky flavor that enhances the creamy squash beautifully.

Once the squash is roasted, use a fork to scrape the flesh into spaghetti-like strands directly into a large mixing bowl. Combine the strands with the chicken ham, crumbled turkey bacon, and half of the cheese sauce. Mix gently to ensure all the strands are coated with creamy, cheesy goodness.

Transfer the mixture to a lightly greased baking dish. Pour the remaining cheese sauce evenly over the top. Sprinkle the chopped fresh parsley for color and a fresh aroma. Optionally, you can add a little extra Parmesan or cheddar on top for a golden, bubbly crust.

Bake the gratin at 375°F (190°C) for 20-25 minutes, or until the top is lightly browned and the dish is heated through. Let it rest for 5 minutes before serving to allow the flavors to meld together.

This recipe is quick and easy. Even first-time spaghetti squash cooks will find it manageable, and it can be customized to suit dietary preferences. Swap the cheeses, add your favorite herbs, or include additional vegetables like spinach or mushrooms. It’s a dish that’s popular with many people because it balances creaminess, flavor, and nutrition perfectly.

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Cheesy Spaghetti Squash Au Gratin – Low Carb Dinner Idea

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This Cheesy Spaghetti Squash Au Gratin is a comforting, low-carb dinner option that combines creamy cheese, tender spaghetti squash, savory chicken ham, and crispy turkey bacon. Perfect for weeknight meals or special occasions, it’s both versatile and satisfying.

  • Total Time: 1 hour 15 minutes
  • Yield: 4 1x

Ingredients

Scale
  • 1 medium spaghetti squash
  • 1 tablespoon olive oil
  • 1 cup cooked chicken ham, diced
  • 1/2 cup cooked turkey bacon, crumbled
  • 1 cup shredded cheddar cheese
  • 1/2 cup grated Parmesan cheese
  • 1/2 cup heavy cream or unsweetened plant-based cream
  • 2 cloves garlic, minced
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 1/4 teaspoon paprika
  • 2 tablespoons chopped fresh parsley

Instructions

  1. Preheat the oven to 400°F (200°C).
  2. Cut the spaghetti squash in half lengthwise and remove the seeds.
  3. Brush the cut sides with olive oil and season with salt and pepper.
  4. Place cut-side down on a parchment-lined baking sheet and roast for 35-40 minutes, until tender.
  5. While roasting, prepare the cheese sauce: combine heavy cream, minced garlic, and cheddar cheese in a saucepan over medium heat. Stir constantly until smooth.
  6. Add Parmesan cheese, paprika, and additional salt and pepper. Remove from heat.
  7. Cook turkey bacon in a skillet until crisp, then crumble. Dice chicken ham into small pieces.
  8. Scrape the roasted squash into strands with a fork and place in a large mixing bowl.
  9. Mix in chicken ham, turkey bacon, and half of the cheese sauce until evenly coated.
  10. Transfer the mixture to a greased baking dish.
  11. Pour the remaining cheese sauce over the top and sprinkle with parsley. Optionally, add extra cheese for a golden crust.
  12. Bake at 375°F (190°C) for 20-25 minutes until the top is lightly browned.
  13. Let rest for 5 minutes before serving.

Notes

You can substitute cheeses or add vegetables like spinach or mushrooms.

Prepare components ahead of time for convenience; assemble and bake just before serving.

Freezing is possible, but fresh preparation yields the best texture.

  • Author: Emily
  • Prep Time: 15
  • Cook Time: 60

FAQs

Can I make this recipe ahead of time?
Yes, you can prepare the squash and cheese sauce in advance. Store them separately in airtight containers in the refrigerator for up to 2 days. Assemble and bake just before serving to maintain the creamy texture and golden topping.

Can I use other types of cheese?
Absolutely. While cheddar and Parmesan provide a classic flavor, you can substitute Gruyère, mozzarella, or a mild Swiss cheese. Mixing cheeses can add depth and richness to the dish.

Is this recipe suitable for a low-carb diet?
Yes, spaghetti squash is naturally low in carbohydrates, making this dish an excellent alternative to traditional pasta-based gratins. It’s perfect for anyone following a keto or low-carb lifestyle.

Can I freeze this dish?
You can freeze the unbaked mixture in a freezer-safe container for up to 1 month. Thaw overnight in the refrigerator before baking. Note that freezing may slightly alter the texture of the cheese, so fresh preparation is preferred for the best taste.

How can I make it extra creamy?
Adding a little more heavy cream or a dollop of cream cheese to the sauce can enhance creaminess. Stir thoroughly to ensure the cheese melts evenly for a smooth texture.

Can I add vegetables to this recipe?
Yes, vegetables like spinach, mushrooms, or bell peppers can be added for extra flavor and nutrients. Sauté them lightly before mixing into the squash and cheese for the best results.

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