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You are here: Home / Recipes / Dinner / Side Dishes / Easiest Roasted Butternut Squash Gratin

Easiest Roasted Butternut Squash Gratin

November 16, 2016 by Mahy, Updated March 3, 2019 16 Comments

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Easy Butternut Squash Gratin

This easy Butternut Squash Gratin features tender, basil pesto flavored roasted butternut squash with a basil crunch almond topping. The perfect Thanksgiving side dish, ready in just 20 mins.

two individual casseroles of Roasted Butternut Squash Gratin topped with breadcrumbs and slivered almonds

Happy Thanksgiving!! If you’re a last-minute person, this easy Roasted Butternut Squash Gratin Recipe will be a lifesaver for you! It’s as simple and straightforward as can be, and it’s super delicious. Tender, basil pesto flavored roasted butternut squash with a basil crunch almond topping, ready in 20 mins for a perfect Thanksgiving side dish. Make the most of squash season, it goes by fast!

close-up of a half-eaten Roasted Butternut Squash Gratin in a small white casserole

More Thanksgiving and Holiday goodness here. I love simple, light side dishes like this butternut squash gratin. And, holiday season aside, a lovely roasted butternut squash gratin like this with a nice salad will always make a perfect lunch/dinner for me.

Why this Roasted Butternut Squash Gratin is the perfect easy fall comfort food: 

This butternut squash gratin is one of those make-ahead, freezer-friendly meals that make life easier. For today, I’ve based the flavor on basil and basil pesto.

But feel free to personalize this gratin recipe completely to your taste! That’s the beauty of food, in my opinion, all you need is a technique or an idea, and go from there with the flavors you love!

So I LOVE butternut squash. Just Love it.

One of my favorite recipes using it has to be this amazing Mediterranean Pear Cinnamon Squash Soup (a Spanish Moroccan fusion recipe) and this pure comfort Squash Basil Amaretti Lasagna .

Despite all that love, I will still mention that you can use any type of squash/pumpkin for the gratin. Actually, any type of veggie—that’s how versatile it is.

close-up of a small casserole dish with Roasted Butternut Squash Gratin

If you’re not familiar with the term gratin, it’s as simple as a baked *something* which could be veggies, eggs, fruits, meats..etc. topped with a crunchy crust.

Some gratins involve a nice saucy bechamel sauce (veggie, or veggies and meats) with a crunchy topping, while other gratins are a simple no-sauce affair with a crunchy topping.

Either way, gratin always impresses with a great contrast of textures—that soft and crunchy contrast is unbeatable.

a half-eaten Roasted Butternut Squash Gratin in a small casserole dish

Now, for this Crunchy Sweet Potato Gratin recipe, I make a simple flour topping. You can absolutely try that topping with this roasted butternut squash gratin too.

I’m going with a quicker breadcrumb topping today so you get a chance to see both options and compare.

How to make this easy Roasted Butternut Squash Gratin: 

I’ll quickly share how this gratin recipe comes together. I LOVE roasting the butternut squash before assembling the gratin. I do this for a few reasons.

First, I get a deeper sweeter more flavorful squash. Second I can roast a whole bunch of squash at the same time, then use some for the gratin, use the rest for s soup or just freeze it for a later day.

And thirdly, the gratins cook much faster when the squash is already roasted. That being said, you can very much make the roasted butternut squash gratin with raw fresh squash and have it all cook together in a one pot meal.

roasted butternut squash in small casserole dishes being topped with basil sauce

Once the butternut squash is sliced and roasted,  you’ll layer it in an oven-safe dish. I prefer making them in individual servings like this. They cook faster and feel more personal. But if I’m making this for a crowd I would opt for a large 3-quart baking dish.

Now I chose basil to flavor the squash—it’s totally up to you which herb you pick. I happen to love the basil and squash combo and simply drizzle a mixture of basil pesto and cream over the squash.

crunchy breadcrumb topping being sprinkled on top of a small casserole with roasted squash

This basil mixture adds flavor and some creaminess to the squash. Then I top the roasted butternut squash with a combo of panko breadcrumbs, parmesan cheese, almonds, and more fresh basil.

two small casseroles of Roasted Butternut Squash Gratin ready to be baked

A tiny drizzle of olive oil over that and they bake for just 8 minutes until the tops are nice and golden. One bite tastes like sweet squash, sweet basil, parmesan, and basil crunchy breadcrumbs.

Pair this with a salad, a roast/grilled type of meat or fish and it’s a perfect meal!

close-up of a half-eaten casserole dish of roasted butternut squash gratin

Can I make these roasted butternut squash gratins in advance? 

Yes, these roasted butternut squash gratins can be prepared in advance. Squash can be roasted and kept in the fridge for unto 5 days and in the freezer for up to 3 months.

The gratin assembled and ready for baking can be prepared 2 days in advance or frozen as it is for 2 weeks before baking (just bake for 5 mins longer).

Or bake the gratin and when it’s cooled down, freeze it and later reheat it in the oven. Super simple, easy and flavor-packed food—Pure LOVE! Make these and enjoy. Have a Happy Thanksgiving!!

Tips for success: 

  • These butternut squash gratins cook much faster when the squash is already roasted. That being said, you can very much make them with raw fresh squash and have it all cook together.
  • As a variation, you can use the topping I use in this Crunchy Sweet Potato Gratin recipe.
  • I’m making this gratin for a crowd I would opt for a large 3-quart baking dish instead of individual ramekins.
Easiest Roasted Butternut Squash Gratin. This quick and easy side dish makes the perfect addition to your Holidays, Potluck or every day meals! It's a combo of roasted butternut squash, basil cream, breadcrumbs and almonds--Seriously good stuff! Full recipe and step by step at www.twopurplefigs.com
5 from 8 votes
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Easiest Roasted Butternut Squash Gratin

This easy Butternut Squash Gratin features tender, basil pesto flavored roasted butternut squash with a basil crunch almond topping. The perfect Thanksgiving side dish, ready in just 20 mins.

Course Main Course, Side Dish
Cuisine American
Keyword butternut squash gratin, squash casserole with panko breadcrumb topping, squash gratin with breadcrumb topping
Prep Time 5 minutes
Cook Time 20 minutes
Total Time 25 minutes
Servings 4 -6
Calories 490 kcal
Author Mahy

Ingredients

  • 1 large butternut squash peeled, deseeded and sliced or cut up into the size you prefer
  • 1/4 teaspoon salt
  • 1 teaspoon olive oil
  • 1/4 cup basil pesto (ready made or this protein-packed hemp seed basil pesto)
  • 1/2 cup cream or half and half
  • pinch of salt
  • pinch of black pepper
  • 1 cup panko breadcrumbs
  • 1 cup freshly grated Parmesan cheese
  • 1/2 cup sliced almonds

Instructions

  1. Preheat the oven to 425 degrees F. Spread the butternuts squash pieces in a single layer and season with salt and olive oil. Toss them well in the seasoning and roast the squash for 12 minutes until tender.
  2. Use a large 3-quart oven-safe dish or 6 ramekins (8-ounce capacity) or 10 ramekins (6-ounce capacity) and layer the squash slices or cubes at the bottom of the dish.
  3. In a bowl mix the basil mixture ingredients and drizzle that over the squash evenly (it will not cover the squash entirely).
  4. Sprinkle the Panko mixture over the squash and then bake the gratin for 8-20 minutes (depending on the size dish you chose) until the tops are golden and crunchy.

Recipe Notes

  • These butternut squash gratins cook much faster when the squash is already roasted. That being said, you can very much make them with raw fresh squash and have it all cook together.
  • As a variation, you can use the topping I use in this Crunchy Sweet Potato Gratin recipe.
  • I’m making this gratin for a crowd I would opt for a large 3-quart baking dish instead of individual ramekins. 
Nutrition Facts
Easiest Roasted Butternut Squash Gratin
Amount Per Serving (1 serving)
Calories 490 Calories from Fat 279
% Daily Value*
Fat 31g48%
Saturated Fat 12g75%
Cholesterol 58mg19%
Sodium 819mg36%
Potassium 829mg24%
Carbohydrates 38g13%
Fiber 6g25%
Sugar 6g7%
Protein 17g34%
Vitamin A 20875IU418%
Vitamin C 39.4mg48%
Calcium 493mg49%
Iron 2.8mg16%
* Percent Daily Values are based on a 2000 calorie diet.

 

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Filed Under: Brunch, Dinner, Holidays, Lunch, Menus, Parties, Potluck, Recipes, Side Dishes Tagged With: butternut squash, butternut squash gratin, Healthy Side dish, healthy Thanksgiving, Holiday, Holiday Side dishes, potluck, Quick Side dish, roasted butternut squash, roasted butternut squash gratin, side dish, sides, squash, squash gratin, Thanksgiving, Thanksgiving side dish, Thanksgiving sides

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Comments

  1. Natalie says

    October 14, 2018 at 7:41 am

    5 stars
    I’m all in squash and pumpkins lately so this recipe looks irresistible to me. So delicious. I love all the flavors and how easy this is to make. I bet my whole family will love it to. Saving the recipe.

    Reply
    • Mahy says

      October 23, 2018 at 10:42 am

      Thanks Natalie

      Reply
  2. Jenni LeBaron says

    October 13, 2018 at 12:08 pm

    5 stars
    I think basil pesto and butternut squash were meant to be. This looks like a great gratin dish that I would love to make for the holidays.

    Reply
    • Mahy says

      October 23, 2018 at 10:43 am

      I agree Jenni!!

      Reply
  3. Marisa Franca says

    October 12, 2018 at 1:23 pm

    5 stars
    I love gratins and using butternut squash instead of potatoes would be wonderful for Thanksgiving. What a great idea to use pesto to help season the squash. And adding a crunchy topping is always a winner in my book.

    Reply
    • Mahy says

      October 23, 2018 at 10:46 am

      Hope you try it Marisa!

      Reply
  4. Veena Azmanov says

    October 12, 2018 at 7:44 am

    5 stars
    Oh, I love roasted butternut squash with such crumble topping. This looks so yum. My favorite is the parmesan.

    Reply
    • Mahy says

      October 23, 2018 at 10:48 am

      Thanks Veena!

      Reply
  5. Dan Zehr says

    October 12, 2018 at 3:41 am

    5 stars
    Wow, what a beautiful presentation. Incredibly beautiful colors. Wow and wow, this is so delicious and it makes my mouth watering

    Reply
    • Mahy says

      October 23, 2018 at 10:48 am

      Thanks Dan

      Reply
  6. Lauren Vavala says

    October 11, 2018 at 7:20 pm

    5 stars
    What a great idea to use butternut squash in a gratin! I love that crispy topping and all the flavors you have in here!

    Reply
    • Mahy says

      October 23, 2018 at 10:49 am

      Thanks Lauren!

      Reply
  7. Karyl Henry says

    October 11, 2018 at 3:55 pm

    5 stars
    I’m such a texture eater, I’m not a big fan of roasted butternut squash. However, I would happily eat the gratin topping! My parents are vegetarian, and would love this dish…I’ll be sharing this with them

    Reply
    • Mahy says

      October 23, 2018 at 10:49 am

      This is really up your alley with textures!!

      Reply
  8. Claudia Lamascolo says

    October 11, 2018 at 3:46 pm

    I was just looking for a pretty way to make butternut squash and came across your recipe I am certain everyone will love it gratin style

    Reply
    • Mahy says

      October 23, 2018 at 10:50 am

      Hope you make it!!

      Reply

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