Roasted frozen vegetables are so easy, delicious, and affordable. The best simple veggie side dish recipe! All you need is frozen mixed vegetables, olive oil, and spices.

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.

“When I tell you, these are the best vegetables I’ve had in my entire life, and even that is giving no justice to how they actually taste. I made them for a group of teenage boys and even they ate multiple servings. My son ate one serving but said ma you did that. Mind you he doesn’t like vegetables, so THANK YOU 1000%” -reader review

Sometimes I have a hard time getting my veggies in if they are not incorporated into the main dish. My new found love are convenient bags of frozen veggies as they are 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.

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

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.

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

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.

a white spatula taking a scoop of roasted vegetables

roasted frozen veggies on the baking sheet after cooking

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!

“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.” -reader review

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