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Roasted Frozen Brussel Sprouts

Roasted frozen brussels sprouts are a side dish that is both easy and delicious! Learn what is the best way to cook frozen brussels sprouts with crispy parmesan cheese coated edges.

roasted frozen brussel sprouts on a black baking sheet

Oven roasted frozen brussel sprouts are an easy and tasty dinner side dish.

If you love brussels sprouts, you will love this recipe!

Roasting sprouts is the key to getting the right texture which is everything with brussels sprouts. 

We love the convenience of frozen vegetables to cut down on prep time. 

Roasted Frozen Broccoli and Roasted Frozen Corn are dinnertime favorites of ours!

up close picture of a roasted brussel sprout with crispy edges

While I love fresh brussels sprouts recipes (like these brussels sprout chips), it definitely takes some time to prep fresh brussels. 

Frozen brussels sprouts can just be put right in the oven without any extra work from me!

Although brussels sprouts bake best cut in half, we let the oven do the thawing for us. Once they have baked a little bit, we can easily slice them in half and finish cooking.

how to make roasted frozen brussel sprouts

To make these roasted brussel sprouts, first preheat the oven to 400 degrees.

Place the frozen brussels in a bowl and drizzle with olive oil, garlic powder, onion powder, and salt and pepper.

Stir until the olive oil and spices coat the brussels sprouts. 

whole frozen brussels sprouts on a baking sheet before roasting

Place the sprouts on a nonstick baking sheet and spread out into an even layer. 

Roast at 400 degrees for 10 minutes.

At this point, the sprouts should be soft enough to cut through.

Cut each brussel sprout in half, and return to the baking sheet.

Once you are done cutting them all in half, sprinkle the sprouts with freshly grated parmesan cheese and return to the oven to keep cooking. 

brussel sprouts cut in half on a baking sheet with parmesan cheese sprinkled on top

Roast for around 35 – 45 minutes, checking every 15 minutes to stir the brussels sprouts. 

Towards the end, watch them closely as we want to get those nice browned crispy edges, but avoid burning. 

roasted frozen brussel sprouts on a black baking sheet from an overhead view

Those crispy parmesan cheese edges are what give these brussel sprouts so much flavor! 

They are a nice texture without being mushy, and those caramelized edges are everything. 

Are Frozen brussel sprouts good?

When cooked correctly, yes!

It’s important to get the right texture, which we do by roasting them at a high heat and coating in parmesan cheese.

up close image of oven roasted brussels sprouts with blackened edge

If you love the convenience of roasted frozen vegetables, you have got to try these other favorites!

Frozen Roasted Carrots are crinkle cut carrots cooked in an olive oil honey marinade and taste so good you will crave them!

For an easy mixed vegetable dish in a hurry, be sure to try this roasted frozen vegetables recipe

If you love cauliflower, you won’t be able to get enough of this delicious roasted frozen cauliflower with crispy parmesan edges.  

Looking for the best way to cook frozen green beans? Roasted frozen green beans are so good!

brussel sprout up close with crispy parmesan cheese edge

Are you making this recipe? I want to see! Don’t forget to tag me on instagram @buildyourbite and hashtag #buildyourbite with your recipe creations!

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Frozen Roasted Brussels Sprouts Recipe

Yield: 5-6

Roasted Frozen Brussel Sprouts

roasted frozen brussel sprouts

Learn how to make roasted frozen brussels sprouts taste delicious! This simple side dish with crispy parmesan cheese edges will be a favorite addition to dinnertime. The best way to cook frozen brussel sprouts!

Prep Time 5 minutes
Cook Time 45 minutes
Total Time 50 minutes


  • 24 oz frozen brussels sprouts
  • 1/3 cup olive oil
  • 1/2 teaspoon pepper
  • 1 teaspoon salt
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon onion powder
  • 1 cup fresh grated parmesan cheese


  1. Preheat oven to 400 degrees
  2. Toss the brussels sprouts in a bowl with the olive oil, pepper, salt, garlic powder, and onion powder until coated
  3. Place brussel sprouts on a nonstick baking sheet, and spread out into an even layer
  4. Roast at 400 degrees for 10 minutes
  5. At this point the brussels should be soft enough to cut through
  6. Remove from oven and cut each brussel sprout in half and place back on the baking sheet
  7. Sprinkle the top of the halved brussels sprouts with the fresh grated parmesan cheese
  8. Roast for 15 minutes, then stir
  9. Roast the brussels sprouts an additional 15 minutes, then stir
  10. Roast for up to 10 more minutes, checking closely, until the cheese begins to brown and form crispy edges on the brussels sprouts

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 218Total Fat: 17gSaturated Fat: 4gTrans Fat: 0gUnsaturated Fat: 12gCholesterol: 14mgSodium: 678mgCarbohydrates: 11gFiber: 3gSugar: 2gProtein: 8g

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Kristina P.

Saturday 11th of July 2020

We love Brussels sprouts and I would love to try this recipe since we're staying home and relying on what's in our freezer, but this seems like a really long time in the oven for a food that's technically already cooked. I'm worried they'll be super soft by the time they've been in there almost an hour. Are you starting with frozen raw sprouts? Or the typical cooked and frozen ones? Thanks!

Joy Shull

Saturday 18th of July 2020

They are raw, and also frozen, which take longer to cook. They are definitely not mushy. I cook them this long so that they get crispy cheese edges! Hope that helps :)

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