Butternut Squash Gratin with Creamy Mushroom Sauce 🍂 Easy and Melt-in-Your-Mouth Recipe!

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Butternut squash gratin with creamy mushroom sauce served in a baking dish
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Butternut Squash Gratin with Creamy Mushroom Sauce is a comforting and flavorful dish that combines the natural sweetness of butternut squash with a rich, creamy mushroom sauce. This recipe is perfect for chilly evenings and works wonderfully as a side dish or a vegetarian main course. It’s not only delicious but also offers a dose of nutrients thanks to the squash and mushrooms, making it a great choice for those looking for a balanced meal option.

Why This Recipe Is Helpful

  • Offers a delightful combination of flavors and textures with creamy and savory elements.
  • Perfect for meal prep; it’s great for leftovers and can be served in various meals throughout the week.
  • A wonderful way to enjoy seasonal produce, promoting healthy eating habits.

Best For

Home cooks looking for a hearty, vegetarian dish that impresses family and friends.

Be Careful If

People managing dairy intake should be cautious due to the use of cream and cheese in this recipe.

Ingredients

  • 1 butternut squash
  • 1 shallot
  • 150g (about 5 oz) button mushrooms or wild mushrooms
  • 1 handful of fresh chives
  • Grated cheese (such as Emmental, ComtĂ©, or mozzarella)
  • 1 tsp mustard
  • 100ml (about 1/2 cup) liquid cream or plant-based cream
  • Salt and pepper to taste
  • Olive oil for drizzling

Ingredient Notes

  • Choose high-quality cheese for a richer flavor.
  • You can substitute the cream with a plant-based version to make it dairy-free.
  • Fresh chives add a nice oniony flavor; however, you could use green onions as a substitute.

Kitchen Tools Needed

  • Oven
  • Baking tray
  • Knife
  • Pan
  • Spoon for scooping

Step-by-Step Instructions

  1. Preheat the oven to 180°C (350°F).
  2. Cut the butternut squash in half lengthwise and remove the seeds. Lightly drizzle with olive oil.
  3. Bake the butternut squash in the oven for about 40 minutes or until tender.
  4. Once baked, carefully scoop out the flesh of the butternut squash using a fork or a spoon. Set aside.
  5. Chop the shallot and finely chop the mushrooms.
  6. In a pan, cook the chopped shallot in a drizzle of olive oil for about 3 minutes until softened.
  7. Add the chopped mushrooms and sauté over low heat for an additional minute until lightly browned.
  8. Incorporate the reserved squash flesh into the pan and cook for 5-6 minutes, mixing well.
  9. Pour in the cream, mix in the chopped chives, mustard, salt, and pepper, and stir until combined.
  10. Fill the hollowed butternut squash halves with the mushroom mixture.
  11. Sprinkle grated cheese generously on top of each squash half.
  12. Increase the oven temperature to 200°C (400°F) and bake until the cheese is nicely browned, about 15-20 minutes.
  13. Serve hot and enjoy this creamy and flavorful gratin.

Pro Tips

  • Make sure to bake the squash until it’s very tender; this makes scooping out the flesh much easier.
  • Use a mix of cheeses for more depth of flavor.
  • If you enjoy a crunchy topping, consider adding breadcrumbs mixed with cheese on top before the final bake.

Lighter Swaps

  • Consider using a light cream or Greek yogurt instead of heavy cream to make it a bit healthier.
  • For a lower-carb version, replace butternut squash with cauliflower.

Common Mistakes

  • Not baking the squash long enough, making it difficult to scoop out the flesh.
  • Overcrowding the pan with mushrooms, which can lead to steaming instead of browning.

Serving Suggestions

This gratin pairs wonderfully with a simple green salad or roasted vegetables.

Storage Instructions

Store leftovers in an airtight container in the refrigerator for up to 3 days.

Reheating Tips

Reheat in the oven for best results; covering with foil will help prevent drying out.

Nutrition Estimate

Calories: 300
Protein: 10g
Carbs: 25g
Fat: 18g

Values are estimates and may vary by ingredients and portion size.

Recipe Summary

Prep Time: 15 minutes
Cook Time: 60 minutes
Total Time: 1 hour 15 minutes
Servings: 4
Cuisine: Vegetarian
Course: Main or Side Dish
Calories: 300

Frequently Asked Questions

Can I make this gratin ahead of time?
Yes, you can prepare it up to the baking step and refrigerate it until you’re ready to bake.

What can I use instead of butternut squash?
You can use other types of winter squash, such as acorn or pumpkin, for similar results.

Is this dish freezer-friendly?
While it’s best enjoyed fresh, you can freeze it before baking, then bake from frozen, adding extra time as needed.

For a rich and delightful flavor experience, you may also enjoy making a broccoli and potato gratin with a creamy béchamel sauce as a variation!

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