Simple oven roasted frozen vegetables like broccoli, green beans, & mixed vegetables are a healthy, easy, & cheap way to get your veggies in!

Well, farmer’s market season is winding down, and all those summer veggies that I just love aren’t in season anymore.
Which means some of those fresh veggies available in the grocery store are going to start being imported, and going up in price.
Ugh! Why can’t healthy, fresh food just be cheap all year around?!
One really great way to eat your veggies in the winter without spending a fortune is to roast frozen vegetables! Not only do they taste fresh and amazing, but they’re usually less expensive than buying them fresh!
Can you roast vegetables from frozen?
Yes! Actually, this is my new favorite way to make them! Simply toss them with the oil, seasoning, and Parmesan cheese, spread evenly on a lined baking sheet, and bake at 400 degrees of 30-40 minutes, depending on what veggies you’re using and how crisp you like your vegetables. Just don’t forget to toss halfway through so they cook evenly.
What vegetables can I roast from frozen?
Pretty much any frozen vegetable you have can be roasted! Cooking times may vary, though, but here are some veggie ideas:
- Frozen broccoli and cauliflower (30-40 minutes)
- Frozen green beans (30-35 minutes)
- Asparagus (30-40 minutes)
- Green peas (30-35 minutes)
- Zucchini and summer squash (30-35 minutes)
- Corn and mixed vegetables (30-35 minutes)
- Carrots 30-35 minutes)
- Brussel sprouts (30-40 minutes)
Do you need to thaw vegetables before roasting?
No, you actually shouldn’t thaw them before hand. The moisture created when they thaw will make them mushy and not as crisp. Plus, it’s so much easier to just grab a bag or two of frozen veggies and bake them quick. No prep work or thawing required!
How do you roast frozen vegetables?
- Toss frozen vegetables with oil, seasonings, and/or parmesan cheese.
- Space them out on a large baking sheet so they are in a single layer and not too crowded together. This will help to make them more crispy.
- Bake about 30-40 minutes in a 400 degree pre-heated oven, or until they’re done and slightly crispy. Toss/flip halfway through so the vegetables cook evenly.
- Serve as a side for dinner or a topping for a salad.
Tips for crispy frozen vegetables
- Use at least 3 T of oil: The oil in this recipe is key to making them crispy because it helps oven-fry them. That makes them crispy without completed drying them out.
- Use a higher temp: I like to roast mine in the oven at 400 degrees for 30-40 minutes, depending on the type of vegetable you use. At the 30 minute mark, most veggies should be soft and brown on the edges. At 40 minutes, they will be a little more crisp!
- Don’t crowd them: Another key factor in making your veggies crispy and not mushy is to space them apart. If they’re not spread out enough, they’ll end up steaming and being more mushy. You may have to use two sheet pans, depending on how many veggies you’re roasting and how big your sheet pans are.
My favorite sheet pan to use is one that takes up the entire oven rack. It allows me spread the veggies apart enough, while only using one sheet pan. Here’s the one I use:
What oil should I use for roasted frozen vegetables?
There a few oils that work the best for roasting frozen vegetables, and also keep them as healthy as possible:
- Coconut oil
- Ghee or clarified butter
- Avocado oil
- Olive oil
These oils are some of the healthiest fats, and will help to make your vegetables flavorful and crisp.
Are roasted vegetables healthy?
One thing I just love about frozen vegetables (beside how inexpensive they are) is that they are typically flash frozen when they are the peak of ripeness. That means that their nutritional quality is really high, and doesn’t diminish like it does with canned veggies.
Roasting them in the oven does take away some of their nutritional value, but all forms of cooking do that! Adding these simple roasted frozen vegetables to your meal plan will only benefit you and your family’s health!
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Is roasting vegetables healthier than steaming them?
Both steaming and roasting vegetables remove some of the nutritional value of vegetables, but the difference is pretty small.
Steaming vegetables can cause they to become soggy and overcooked. If you want vegetables that are crisp and flavorful, roasting frozen vegetables is the better option!
Seasonings and flavor options
This simple roasted frozen vegetable recipe calls for basic flavorings like black pepper, garlic powder, onion powder, and parmesan cheese. Some other flavor options are:
- Italian seasoning
- Lemon pepper
- Cajun seasoning
- Curry powder
- Lime or lemon juice
- Balsamic vinegar
- Smoky BBQ seasoning
- Everything But the Bagel seasoning
- Chile Lime seasoning
The possibilities are endless!
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What goes well with roasted frozen vegetables?
Roasted frozen veggies pair well with salads, meats, pastas, and sandwiches. Here are some meal ideas:
- Roasted or grilled chicken like Rosemary Balsamic Chicken
- Blackened Tilapia
- Foil Baked Salmon
- Pasta like Healthy Baked Ziti, Pumpkin Pasta, or One Pot Mac & Cheese
- Instant Pot Sloppy Joes
- Mushroom Sauce Chicken
Budget Friendly
This is probably my cheapest recipe yet! $2.78 for the whole recipe, or about $.70 per serving! Eating vegetables doesn’t have to cost you a fortune.
Although it’s not a meal itself, these veggies pair so well with my balsamic marinated chicken, which is also insanely cheap at $.99 per serving. Plus, the chicken makes a great freezer meal that you can just throw in a gallon zip lock!
Simple roasted frozen vegetables are healthy, easy, fast, and budget-friendly. Roasting your frozen veggies is one of the best ways to save money while eating healthy!
Recipe
Simple Roasted Frozen Vegetables
Ingredients
- 24 oz frozen vegetables
- 3 tbsp avocado or olive oil
- ½ tsp black pepper
- 1 tsp garlic powder
- ½ tsp onion powder
- 3 tbsp shredded parmesan cheese
Instructions
- Preheat oven to 400°. Line a baking sheet with parchment paper.
- Toss frozen veggies with oil, spices, and cheese in a large bowl.
- Bake for 30-40 minutes, depending on how crisp you like your vegetables. Toss vegetables halfway through for even cooking.
Notes
- Frozen broccoli and cauliflower (30-40 minutes)
- Frozen green beans (30-35 minutes)
- Asparagus (30-40 minutes)
- Green peas (30-35 minutes)
- Zucchini and summer squash (30-35 minutes)
- Corn and mixed vegetables (30-35 minutes)
- Carrots (30-35 minutes)
- Brussel sprouts (30-40 minutes)
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If you end up making this and loving it, take a photo and tag me on Instagram! I’d love to see your versions of my recipes! And feel free to rate it down below in the comment section. I would really appreciate it!
Roasting vegetables in the oven is one of the easiest, healthiest, cheapest, and most delicious ways to add vegetables into your family’s diet. Which ones are you going to roast first?
xoxo Megan
Amy says
I literally pull this up and use it any time I want to roast frozen veggies, I’m clueless in the kitchen and this is a life saver, and sooooo delish!
Megan Byrd, RD says
I’m so glad it makes a great reference guide for you Amy! Thanks a bunch 🙂
Tammie Fischer says
Oven roasting brings out the flavor! Love it!