Skip to Content

Frozen Roasted Vegetables Recipe

Roasting frozen mixed 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

Can you roast frozen vegetables?

Yes! Roasting frozen vegetables is one of the best ways to make frozen mixed vegetables taste delicious.

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 cook 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 mixed 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

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!

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!

More Recipes from Build Your Bite

Be sure to pin this recipe for later and follow Build Your Bite on Pinterest for all the latest delicious recipes!

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

Did you make this recipe? Be sure to leave a star rating below!

Roasted Frozen Vegetables Recipe

roasted frozen mixed vegetables

Frozen Mixed Vegetables

Yield: 2 - 3 servings
Prep Time: 5 minutes
Cook Time: 30 minutes
Total Time: 35 minutes

These easy frozen mixed vegetables are roasted in the oven for an easy and delicious side dish.


  • 12 oz mixed frozen vegetables (broccoli, cauliflower, carrots)
  • 2 tablespoons olive oil (or use olive oil spray)
  • ½ teaspoon salt
  • ½ teaspoon pepper
  • ½ teaspoon garlic powder
  • ½ teaspoon onion powder


  1. Preheat the 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. Roast the frozen vegetables at 400 degrees for around 30 minutes, until the edges begin to brown, stirring and flipping every 10 minutes
Nutrition Information:
Yield: 3 Serving Size: 1
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!

Sharing is caring!

This site uses Akismet to reduce spam. Learn how your comment data is processed.


Saturday 15th of July 2023

To prevent mushiness, preheat the sheet as you preheat the oven.

Vicki conant

Friday 10th of February 2023

Is this recipe good for diabetics ?


Tuesday 10th of January 2023

Looking for quick and easy for a dinner party. Would you recommend tossing these afterwards with some balsamic vinegar and some oil? Thanks! Can’t wait to try this!

Darlene Bogany

Thursday 28th of July 2022

Is roasted frozen vegetables good for diabetics

Kathy Denny

Saturday 23rd of July 2022

Can’t wait to make these roasted veggies! I made some roasted veggies that were being thrown out from a vegetable and dip platter and they were delicious! This recipe will be delicious and couldn’t be easier! Thank you so much!

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Skip to Recipe