How To Cook Frozen Brussel Sprouts - The Typical Mom

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How to Cook Frozen Brussel Sprouts

By Justine

5 from 5 votes

Updated Jan 01, 2026

Published Feb 26, 2025

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Jump to Recipe roasted frozen brussel sprouts

How to cook frozen brussel sprouts in the oven, Instant Pot pressure cooker or Air fryer frozen brussel sprouts to tender and delicious in no time is a game changer when you forget to defrost your side dish.

I have been sharing how to cook frozen food a lot lately. Why?? Because I’m forgetful and assume I’m not the only one. This focuses on how to cook frozen brussel sprouts. Now that you’re an adult you love these babies right?? When you need an easy side dish some night, try these and let us know your thoughts.

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How Long to Cook Frozen Brussel Sprouts

This answer depends on how you want to do it. In the oven, shared below, will take the longest but still under 30 minutes so not too bad. There are other methods that will speed up the process. If you have one or more of these handy dandy kitchen appliances you can also try:

In the air fryer are closer to 15 minutes. You can use the same timing for Instant Pot brussel sprouts, doesn’t change from fresh to rock hard believe it or not

These just have simple seasonings on the outside. If you wanted a bolder choice I would make a balsamic sauce and toss to coat at the end.

This one is quite simple and doesn’t need a ton of explanation other than the ingredients, temperature and cook time. You can mix half and half Brussel Sprouts and Sweet Potatoes or just one. For super easy basic instructions just need the following things, no matter what the cooking method is;

How Long to Boil Frozen Brussel Sprouts

First off, I do have instructions on boiled brussel sprouts but this would be my least favorite method. No matter what vegetable it is if you boil them in water you’re going to make them mushier (and I’m all about great texture) and it will leach the nutrients right out of them. BUT if this is the only way to make them I will help you out.

Bring a pot of water with some salt in it to a rolling boil
Pour frozen brussels inside and boil for 4-5 minutes or until they’re as tender as you’d like
Use a slotted spoon to remove
If you wanted to crisp the outside you could pour them into your air fryer at 400 F. (sprayed with olive oil and seasoned) for about 3 minutes until crispy.

Enjoy as is or for a bolder flavor drizzle some of your favorite balsamic on top with a bit of olive oil and enjoy with a few frozen chicken breast in oven. Complete meal done!

How to Cook Frozen Brussel Sprouts on Stove

Now let’s move on to a pan on your stovetop. You can use that too if you’d like. You’ll need a bit of water at the bottom of your pan to steam them essentially this way. Choose a pan like this with high sides and a lid.

Add about 1/2″ of water into your pan
Set it on medium high heat until it reaches a rolling boil
Pour in veggies and put the lid on for about 3 minutes or until fork tender
Most of liquid should be gone now, if not drain
Add 2-3 tbsp olive oil and season as desired, coat
Brown the outsides as you like and then serve!

How to cook frozen brussel sprouts in slow cooker

It wouldn’t take any longer to make Crockpot brussel sprouts whether they started out as hard or fresh brussel sprouts really. The biggest difference is that in the bag like rocks you won’t be able to slice them in half. Typically though when you buy them bagged in the freezer section they are a bit smaller than fresh in the produce section.

SO that should even out as far as the cook time goes so the timing shouldn’t change. If you love the “old fashioned” method for everything go for this method that gets them fork tender every single time.

Discover how to cook frozen Brussels sprouts by roasting them to perfection, seasoned with a medley of spices on a baking tray.

Ok so we are down to this method. How do you roast frozen brussel sprouts the old fashioned way? We all love oven roasted everything. Last but not least this is how you can make this nutritious vegetable delicious with some parmesan cheese (our fave). There is a printable recipe card at the bottom of this post but here is a quick rundown;

How Long to Cook Frozen Brussel Sprouts in Oven

You are going to want to spread out in one layer on sheet pan and bake for approximately 20 minutes to 25 min., until they get to be nice and fork tender. Then carefully, remove from the oven and top with shredded parmesan cheese. Our preference is to go another step and broil for another 2-3 minutes, until they are lightly browned.

If you want to cook an entire meal at the same time, read how to cook a frozen roast in the oven too.

A bowl of perfectly roasted Brussels sprouts, skillfully transformed from their frozen state, is topped with golden breadcrumbs and flavorful seasoning.

5 from 5 votes

Frozen Brussel Sprouts in Oven Recipe

By Justine How to cook frozen brussel sprouts in the oven, air fryer or Instant Pot pressure cooker. From frozen to tender and delicious in no time. Prep: 10 minutes Cook: 28 minutes Servings: 8 Save RecipeSaved! Pin Recipe Comment Print Recipe

Equipment

1 baking sheet

Ingredients 1x2x3x

▢ 2 lbs brussel sprouts, frozen
▢ 1/4 cup olive oil
▢ 1 tsp garlic powder
▢ 1 tsp onion powder
▢ 1/4 cup parmesan cheese
▢ 1 pinch salt, to taste

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Instructions

Preheat the oven to 400 degrees F. In a large bowl, drizzle the brussels with olive oil. Add garlic powder, onion powder, and a dash of salt & pepper. Toss well to make sure everything is evenly coated.
Spread the seasoned brussels sprouts on a large baking sheet. Bake for approximately 25 minutes, or until fork tender.
Carefully, remove from the oven and top with Parmesan cheese. Broil for another 2-3 minutes, or until lightly browned. ENJOY!

Video

Nutrition

Serving: 1oz, Calories: 125kcal, Carbohydrates: 11g, Protein: 5g, Fat: 8g, Saturated Fat: 2g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 5g, Cholesterol: 3mg, Sodium: 77mg, Potassium: 459mg, Fiber: 4g, Sugar: 3g, Vitamin A: 887IU, Vitamin C: 96mg, Calcium: 71mg, Iron: 2mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Course: Appetizer, Side DishCuisine: American Tried this recipe?Mention @thetypical_mom or tag #thetypicalmom!

You can do this with other veggies too. We share all the different ways here on our how to cook frozen green beans post as well. Make them all!

How do you save leftovers

If you have leftovers they save quite well until the next day, not really beyond that. I would suggest warming them up in your Ninja Foodi air fryer to fix the softened outside texture to a nice crisp again. Like I said, I am all about texture so there’s that. Alternatively you could slice them up and add into a different dish like a quiche.

What is the trick to making brussel sprouts extra crispy?

No matter what cooking method you use make sure that you remove all the moisture you can. After rinsing, roll up in several paper towels to absorb the water. If you slice them, dry again. Then coating in olive oil will keep them moist AND crisp them up nicely too. The air fryer is your best option for an extra crispy exterior!

How do you know if frozen brussel sprouts have gone bad?

They can stay frozen for quite some time. The biggest sign that they need to be thrown out is freezer burn. If you open the bag and there is a ton of ice inside or they have turned from green to white in color.

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About Justine

Justine is the creative mind behind The Typical Mom and The Typical Family on YouTube. She began blogging about easy recipes, budget friendly activities for kids, and fun family travel destinations in September 2012.

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5 from 5 votes (1 rating without comment)

4 Comments

This Brussels sprouts recipe was the perfect way to use up some frozen sprouts i had in my freezer. They cooked perfectly in the oven.
Reply
I love my brussel sprouts crispy! Thank you for these tips on how to cook them from frozen.
Reply
This is such an easy way to cook frozen Brussels sprouts, and the seasonings really enhance the flavor!
Reply
I was looking for a recipe for side dish like this because we have a gathering this weekend. , thank you for sharing! I can’t wait to try it soon!
Reply

Hi, I'm Justine!

Welcome to The Typical Mom blog where we share easy Instant Pot recipes, use our Ninja Foodi, Crockpot and air fryer daily, and share fun family travel destinations!

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