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    Home » Recipes » Side Dishes

    Roasted Frozen Brussels Sprouts

    Published: Dec 15, 2020 by Kate Hackworthy · This post may contain affiliate links ·

    Jump to Recipe
    Dish of roasted sprouts with text: How to make roasted frozen brussels sprouts.
    Bowl of sprouts with text: Easy Frozen Roasted Sprouts
    Dish of roasted sprouts with text: How to make roasted frozen brussels sprouts.

    Wondering how to cook frozen sprouts? This easy roasted frozen brussels sprouts recipe turns them into a healthy budget-friendly side dish for the whole family. Plus, you only cook what you need so there's less waste.

    Bowl of roasted sprouts.

    Have you ever wondered how to cook frozen brussels sprouts? You could steam or boil them, but I find the best way is to stick them in the oven!

    Roasted frozen brussels sprouts are super easy, convenient and tasty.

    Using frozen vegetables is the best way to get healthy side dishes on the dinner table without breaking the bank.

    Brussels sprouts are incredibly versatile and nutrient-dense and can also be found frozen in any grocery store.

    Using this method, you can roast them in the oven straight from frozen!

    Tray of cooked sprouts.

    Why You'll Love This Recipe

    Brussels sprouts are a healthy vegetable that contain a high amount of nutrients.

    You can flavor them or toss them in many different seasonings and dressings, from balsamic glaze to parmesan cheese.

    Frozen brussels sprouts are very budget-friendly.

    They help save time making dinner by not having to chop, thaw or steam them.

    You can make as many as you want all at once to scale for your family size without any food waste.

    Roasting brussels sprouts from frozen produces a nice tender brussel sprout that is tender on the inside and slightly browned on the outside without it being crispy.

    Frozen sprouts on a board.

    Ingredients & Tools 

    Frozen Brussels Sprouts: You can use any amount you need as long as they fit on a sheet pan. If you're cooking lots, then use two sheets so they're not crowded (or they'll steam instead of roast)

    Oil: This will help the sprouts roast up nicely.

    Salt: Salt will not only bring out the flavor of the brussels sprouts but it will also help draw out some of the moisture so it roasts properly.

    For Serving:

    Grated Cheese: This is optional but it elevates the final dish. Feel free to use any hard cheese you like, such as parmesan, or even vegan parmesan cheese. 

    How to roast frozen sprouts

    Follow this step-by-step photo tutorial, then scroll down to the recipe card for the full ingredients list and method.

    Collage: 1 frozen sprouts, 2 on a tray, 3 roasted.

    Preheat the oven to 430F / 220C and line a rimmed baking sheet with parchment paper.

    Put the frozen brussels sprouts onto the baking sheet (no need to thaw them first!), drizzle with the oil and sprinkle with a little salt.

    Roast in the oven for 25 minutes or until soft inside and lightly browned on the outside.

    If desired, sprinkle with a little parmesan and more sea salt.

    Tips 

    It’s important to know that the brussels sprouts will not be crispy when they are finished as if you roast raw un-frozen sprouts. They will be slightly brown on the outside and deliciously tender all the way through.

    Once they are fully cooked, test for desired flavor and toss with more oil or salt if needed as the roasting process may have absorbed a lot of the flavor.

    Most frozen brussels sprouts come in their whole form. It’s ok to roast them whole with no need to cut them. 

    Do not overcrowd the baking sheet as that will cause them to steam and become mushy when roasting brussels sprouts from frozen. Make sure they are in a single layer on the baking sheet.

    Serving Suggestions

    Toss them with Vegan Chicken Broth Seasoning. 

    Pairs well with Maple Glazed Carrots & Cayenne. 

    Serve with a side of Sriracha Aioli for dipping. 

    Add them to this easy Vegan Quiche. 

    Bring to a holiday party with this Vegan Stuffing with Sage. 

    Variations

    Toss with lemon juice after baking for a fresh acidic flavor.

    Add in some fresh herbs after roasting.

    Roast with a pinch of cayenne pepper for spicy brussels sprouts.

    Sprinkle with your favorite chopped nuts after roasting for a crunchy texture.

    Add a drop of liquid smoke to the final dish for smoky brussels sprouts.

    Drizzle the cooked sprouts with a little balsamic glaze.

    Add chopped vacuum-packed whole cooked chestnuts for a traditional British twist.

    Special diets

    To Make Gluten Free: Brussels sprouts are naturally gluten free but be sure to check your labels on individual spices or toppings as they may contain wheat ingredients.

    To Make It Vegan: This recipe is naturally vegan and vegetarian friendly. Be sure that your desired toppings (such as cheese) are vegan or vegetarian friendly.

    NOTE: I am not a certified nutritionist and make no claims to the contrary. If you have a food allergy or intolerance you should determine whether the ingredients in each recipe are suitable for you.

    Storage 

    Storing: You can store cooked brussels sprouts  in an airtight container for up to 3 days but is best consumed immediately after roasting.

    Freezing: It is not recommended to freeze these brussels sprouts because they have already been frozen. Refreezing them again will result in a mushy texture that is not palatable.

    FAQs 

    Can I make these in the air fryer? Yes! You can make them in your favorite air fryer by roasting at 375F for 20 minutes. All air fryers are different so be sure to check them frequently to prevent overcooking.

    How do I make frozen brussels sprouts not mushy? The trick to making them hold up is to not thaw them at all. Thawing them will change the structure. When they are cooked at high heat such as in this recipe, they hold up much better.

    How can I tell if frozen brussels sprouts have gone bad?  If they are freezer burned, have black or moldy spots or if they don’t smell right they have probably spoiled. Throw them away and grab another bag at your local grocery store.

    Can I freeze fresh brussels sprouts? Yes! If you  have an abundance of fresh brussels sprouts you can freeze them yourself by trimming the stem, removing any brown leaves and placing them on a rimmed baking sheet in a single layer overnight. This will create a layer of ice so that they will not stick together. Once they are completely frozen you can transfer them to a freezer safe bag to freeze for up to 4-6 months.

    You’ll Also Love These Easy Side Dishes

    Roasted Garlic Mashed Potatoes

    Maple Roasted Butternut Squash

    Mac and Cheese Balls

    Parmentier Potatoes

    Braised Red Cabbage

    Serving dish of sprouts.

    Roasted Frozen Brussel Sprouts

    Kate Hackworthy | Veggie Desserts
    Wondering how to cook frozen sprouts? This easy roasted frozen brussels sprouts recipe turns them into a healthy budget-friendly side dish for the whole family. Plus, you only cook what you need so there's less waste.
    4.91 from 10 votes
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    Prep Time 0 mins
    Cook Time 25 mins
    Total Time 25 mins
    Course Side Dish
    Cuisine American
    Servings 6
    Calories 38 kcal

    Equipment

    • Oven
    • Baking sheet

    Ingredients
     

    • 1 lb (4 cups) frozen brussels sprouts or however many you want for your meal
    • 1-3 teaspoons oil
    • Salt

    To serve (optional)

    • Parmesan cheese or vegetarian/vegan grated hard cheese

    Instructions
     

    • Preheat the oven to 430F / 220C - you'll need the oven to be quite hot.
    • Put the frozen brussels sprouts onto the baking sheet (no need to thaw them first!), drizzle with the oil and sprinkle with a little salt.
    • Place the baking sheet into the oven and roast the sprouts for 25 minutes or until soft inside and crispy on the outside.
    • If desired, sprinkle with a little parmesan and more sea salt.

    Notes

    It’s important to know that the brussels sprouts will not be crispy when they are finished. They will be slightly brown on the outside and tender all the way through. 
    Once they are fully cooked, test for desired flavor and toss with more oil or salt if needed as the roasting process may have absorbed a lot of the flavor. 
    Most frozen brussels sprouts come in their whole form. It’s ok to roast them whole with no need to cut them. 
    Do not overcrowd the baking sheet with brussels sprouts as that will cause them to steam and become mushy. Make sure they are in a single layer on the baking sheet.

    Nutrition

    Calories: 38kcalCarbohydrates: 7gProtein: 3gFat: 1gSaturated Fat: 1gSodium: 19mgPotassium: 294mgFiber: 3gSugar: 2gVitamin A: 570IUVitamin C: 64mgCalcium: 32mgIron: 1mg

    The nutritional information provided is approximate and can vary depending on several factors, so is not guaranteed to be accurate. Please see a registered dietician for special diet advice.

    Tried this recipe?Mention @kateveggiedesserts or tag #veggiedesserts! I love seeing your recreations.

    More Side Dish Recipes

    • Mexican Quinoa Salad
    • Air Fryer Roasted Potatoes
    • Roasted Radishes
    • Broccoli and Cheese Sauce
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    Reader Interactions

    Comments

    1. Shanna

      December 15, 2020 at 6:17 pm

      5 stars
      So yummy! The Parmesan cheese on top totally made this recipe.

      Reply
    2. Bintu | Recipes From A Pantry

      December 15, 2020 at 6:08 pm

      5 stars
      Super tasty! We love brussels sprouts as a side in my house - especially during the festive season.

      Reply
    3. Tara

      December 15, 2020 at 5:59 pm

      5 stars
      Oooh nice! Love that the Brussels sprouts can be roasted straight from the freezer. What an easy side! All those variations and flavors sound amazing too.

      Reply
    4. Nathan

      December 15, 2020 at 5:44 pm

      5 stars
      I think this is my favorite way to eat Brussels sprouts, and this is so convenient that you can roast them right from frozen!

      Reply
    5. Kelli

      December 15, 2020 at 5:38 pm

      5 stars
      Never knew you could roast frozen brussels sprouts without thawing them first! Such an easy recipe and love that it's just another simple way to add in more veggies!

      Reply

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    Popular recipes

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    Easter Recipes

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    Check out my Veggie Desserts Cookbook, full of tasty desserts with vegetables!

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