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Frozen Roasted Vegetables Recipe

Roasting frozen vegetables is so easy, delicious, and affordable.  A simple veggie side dish recipe! All you need is frozen mixed vegetables, olive oil, and a few spices. 

roasted vegetables on a parchment paper lined baking sheet

Roasting frozen vegetables just might be one of my greatest dinnertime hacks ever.

If you need a vegetable side dish in a hurry, you cannot go wrong with this recipe!

After making this frozen carrots recipe and this frozen roasted corn, I knew I had to keep making recipes with frozen veggies because they were just so delicious!

Oven roasted frozen broccoli is another recipe that changed my life and is one of my favorite ways to eat my veggies.

broccoli, cauliflower, and carrots roasted on a parchment paper lined baking sheet

I have a hard time getting my veggies in if they are not incorporated into the main dish.

My new found love is those convenient bags of frozen veggies – only between $1 – $2 and I have a delicious veggie side dish on the table with little effort!

Roasted frozen brussel sprouts are coated in crispy parmesan cheese edges is always a favorite in our house!

And if you are wondering how to cook frozen green beans, roasting them is, you guessed it, delicious!

Roasted frozen cauliflower is the best way to roast cauliflower, and it gets those yummy crisped edges that everyone loves. 

And this recipe today incorporates one of the most popular bags of frozen veggies – cauliflower, carrots, and broccoli.

frozen roasted mixed vegetables from an overhead view

how to roast frozen vegetables

This recipe is so simple and only takes a few minutes to prep.

Step 1: Preheat the oven to 400 degrees.

Step 2: line a baking sheet with parchment paper and place the frozen vegetables on top in an even layer.

Step 3: Toss your veggies with olive oil and spices until coated, then bake at 400 degrees for around 30 minutes, stirring every 10 minutes or so. 

You can tell they are done when the edges start to get those yummy browned bits on them. 

a white spatula taking a scoop of roasted vegetables

We are going for basic crowd pleasing flavors here – nothing fancy.

All you need is salt, pepper, garlic powder, and onion powder to make these veggies taste amazing. 

I ate half the batch for a second lunch and licked the bowl clean!

roasted frozen veggies on the baking sheet after cooking

I love roasted veggies, but I don’t always have or make the time to chop them up myself.

The convenience of this recipe just can’t be beat!

Try this easy recipe next time you need a fuss free dinner.

Roasted carrots, cauliflower, and broccoli on a baking sheet

Do you need to thaw frozen vegetables before roasting?

Nope! Actually it is not a good idea to let them thaw at all.

Part of the secret to getting crispy frozen roasted veggies is cooking them straight from frozen at a high temperature.

How do you make frozen vegetables crispy?

The key to crispiness is to not let them thaw, and to roast the vegetables at a high heat.

This is what gets those delicious little crispy edges!

How to roast frozen vegetables – these are amazing and so easy to make! #frozenvegetables #roastedvegetables #sidedish #vegan #vegetables #vegetarian

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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image with text "frozen roasted vegetables"

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Roasted Frozen Vegetables Recipe

image with text "how to roast frozen vegetables"
Yield: 2 - 3 servings

Frozen Roasted Vegetables Recipe

How to roast frozen vegetables – these are amazing and so easy to make! #frozenvegetables #roastedvegetables #sidedish #vegan #vegetables #vegetarian

Can you roast frozen vegetables? Yes you can! This easy recipe makes frozen roasted vegetables taste delicious with olive oil and spices.

Prep Time 5 minutes
Cook Time 30 minutes
Total Time 35 minutes


  • 12 oz mixed frozen vegetables (broccoli, cauliflower, carrots)
  • 2 tablespoons olive oil
  • 1/2 teaspoon salt
  • 1/2 teaspoon pepper
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon onion powder


  1. Preheat oven to 400 degrees
  2. Line a baking sheet with parchment paper
  3. Pour frozen vegetables onto parchment paper (be sure you do this straight from the freezer, do not thaw the vegetables first)
  4. Toss vegetables with olive oil and spices, until coated
  5. Bake frozen vegetables at 400 degrees for around 30 minutes, until edges begin to brown (stir/flip every 10 ish minutes)

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 201Total Fat: 10gSaturated Fat: 1gTrans Fat: 0gUnsaturated Fat: 8gCholesterol: 0mgSodium: 422mgCarbohydrates: 24gFiber: 10gSugar: 8gProtein: 7g

Did you make this recipe?

Be sure to tag me on instagram @buildyourbite and hashtag #buildyourbite with your recipe creations!

p.s. If you love this recipe, here’s how to make it in the air fryer with this air fryer frozen vegetables recipe!

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Barbara Conway

Monday 13th of September 2021

I made the freeze mix vegetables it was very good


Thursday 8th of July 2021

I love roasted vegetables but never thought to do it with frozen ones. They turned out great! What a great way to prepare vegetables when you don't have a lot of time.


Saturday 19th of June 2021

I cooked 2 pans at a time…1 dark the other lighter. Nice and crispy but the dark pan was blackened more. Note to self, cut back on time when using dark pan.


Monday 25th of January 2021

Do these refrigerate well? Wondering if I cook a bunch for the week they would hold up.

Joy Shull

Friday 29th of January 2021

Personally, I find the texture best when made fresh. Luckily they are so easy you could just make a batch for dinner several times a week! It only takes just a couple minutes to prep.

Judy Richardson

Saturday 5th of September 2020

Love the roasted vegggie

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