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Roasted Butternut Squash (Using Frozen Cubes!)

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Can you roast frozen butternut squash? Absolutely! Here’s how to do it to make the squash crispy and flavorful.

In the Fall, I LOVE using butternut squash. It’s cheap, delicious, and full of nutrients. Butternut squash soup is one of my favorite Fall meals, and I also roast big batches for a simple side dish.

I typically roast it just like sweet potatoes, and use it as the perfect side dish in many meals.

Have you ever tried to cut a whole butternut squash? A whole squash is definitely cheaper than pre-cut, but it does take some time and effort to dice up an entire squash.

So sometimes I rely on frozen butternut squash cubes, because they’re so much easier to handle. And did you know you can roast this in the oven, just like regular squash?

Roasted butternut squash with text "Roasted butternut squash- from frozen!"

I’m going into detail on how to roast frozen butternut squash- what seasonings are great, what temperature to use, etc. Scroll to the bottom of the post to get to the recipe card, or keep reading for my top tips!

Where can you find frozen butternut squash?

At most grocery stores, you can find this along with the frozen vegetables. It’s so convenient!

I recommend checking the ingredients list, because sometimes frozen veggies will have added sauces you may not want.

Does frozen squash take longer to cook?

Honestly, the cooking time tends to be about the same. Butternut squash tends to take longer anyway because it’s so thick.

With a high temperature, the frozen squash can roast pretty well and get crispy. My preference is 425 degrees F, but you can probably go up to 450.

How to cut a regular butternut squash

You can roast a raw butternut squash the same way you roast frozen squash! The roasting time doesn’t really change. Here are the tools I use:

  • Cutting board
  • Microwave-safe plate
  • Fork
  • Vegetable peeler
  • Sharp chef’s knife

You can read my blog post for all the details on how to safely cut a butternut squash! There are different ways to do it, but this is the easiest way for me.

Ingredients for roasted butternut squash


Frozen butternut squash cubes (They’re usually cut in 1-inch cubes or less)

Olive oil

Salt and black pepper

Garlic powder

Other seasonings to try

Butternut squash is actually pretty similar to sweet potatoes. They both have a sweeter taste and do well with both sweet and savory seasonings. Here are some other flavor combinations you can try:

  • Honey, maple syrup, or brown sugar and cinnamon
  • Everything bagel seasoning
  • Chili powder
  • Onion powder
  • Cayenne pepper
  • Parmesan cheese

How to roast frozen butternut squash

Preheat the oven to 425 degrees F.

Frozen butternut squash cubes in a bowl

In a large bowl, combine the cubes of butternut squash, olive oil, salt and pepper, and garlic powder.

Frozen butternut squash cubes on a baking sheet

Spread out the squash on a sheet pan in an even layer. Bake for 25-30 minutes, stirring halfway through, until the squash is slightly golden brown on top and is fork tender.

Roasted butternut squash on a baking sheet

How to store

If you have any leftover squash, store in an airtight container in the fridge once it comes to room temperature. It’ll stay fresh for 3-5 days.

The best method for reheating is the oven or toaster oven, but the microwave works in a pinch. The microwave just keeps the squash really soft, while the oven helps crisp it back up.

Roasted butternut squash on a plate

Extra cooking tips

Keep the squash frozen!

I find that the squash roasts better when it’s still completely frozen. Otherwise I find a bit of condensation on the tray.

Break up large chunks

Sometimes the cubes will freeze together in large pieces. Break them up before adding them to the bowl so they can cook more evenly. This will also make it easier to spread the squash in a single layer.

Butternut squash is an easy side dish! Get the recipe below:

Roasted Butternut Squash (Frozen Cubes)

Roasted Butternut Squash (Frozen Cubes)

Yield: 2 cups
Prep Time: 5 minutes
Cook Time: 25 minutes
Total Time: 30 minutes

Can you roast frozen butternut squash? Absolutely! Here's how to do it to make the squash crispy and flavorful.


  • 2 12-ounce bags frozen butternut squash
  • 1 tablespoon olive oil
  • 1/4 teaspoon salt
  • 1/2 teaspoon pepper
  • 1/2 teaspoon garlic powder


    1. Preheat the oven to 425 degrees F.
    2. In a large bowl, combine the squash cubes, olive oil, salt and pepper, and garlic powder.
    3. Spread out the squash on a baking sheet in a single layer. Bake for 25-30 minutes, stirring halfway through, until the squash is slightly browned on top.
Nutrition Information:
Yield: 4 Serving Size: 1
Amount Per Serving: Calories: 100Total Fat: 4gSaturated Fat: 1gTrans Fat: 0gUnsaturated Fat: 3gCholesterol: 0mgSodium: 139mgCarbohydrates: 18gFiber: 6gSugar: 3gProtein: 2g

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