Once you know how to cook frozen green beans in the oven, you’ll never look back. This simple recipe is a tasty way to turn frozen green beans into a delicious side dish.
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Recipe for frozen green beans in the oven
You know those busy weeknights where all you want to do is order delivery, but you know there are ingredients in your fridge and pantry that would make a great dinner?
Even as a food blogger, I have those nights sometimes. My goal is to give you simple recipes for easy meals you can make for dinner because I can relate!
Instead of buying fresh green beans that you have to trim, wash, cut, and all of those extra steps, you can take frozen green beans straight from the freezer and turn them into a simple side dish that's full of flavor.
Why you'll love this easy green bean recipe
This green beans recipe is so good. Here’s why you’ll come back to it again and again:
- Roasted frozen green beans are quick and easy. Rip open the bag, season, bake and voila!
- Kids love green beans. Sometimes we serve them with dipping sauce for “green fries.”
- Frozen veggies are budget-friendly. They're a great way to save money.
- Frozen green beans won’t go bad as quickly as fresh ones, so you’ve always got a great veggie dish ready to go in the freezer.
I’ll show you the easy way to cook frozen green beans for the best taste. You’ll never go back to steaming or microwaving!
Ingredients for this frozen greens recipe
Frozen green beans seem like they’d be enough on their own, but they’re actually even better with some light seasonings. Here’s what you’ll need to grab from your pantry to make these
- frozen green beans - You can use any frozen green bean for this, including the steamable kind. However the steamable bags come in special packaging and may cost more, so keep an eye out.
- avocado oil - You can use sesame oil, olive oil, or vegetable oil instead. I like avocado oil because it has a neutral taste. You can even melt butter in place of the oil. Just use the melted butter the same way as the oil.
- coarse kosher salt - You can use coarse sea salt instead. Stay away from table salt though — it is much better for seasoning a finished dish than for cooking.
- ground black pepper - I like to use this pepper grinder for cooking. Fresh pepper makes a huge difference in flavor.
- garlic powder & onion powder - make sure they aren't expired for the best taste. Most spices need to be replaced after 6 months.
String beans vs. Green beans
Green beans and string beans are actually the same things! So if you see frozen string beans, you are safe to buy that kind.
The name string bean is actually somewhat outdated. It refers to the thin, fibrous “string” that used to run down the length of the pod and that had to be removed by hand, bean by bean, like snap peas. Also known as snap beans.
But in the 19th century, these strings were eliminated thanks to careful breeding, according to Serious Eats. These days, only heirloom varieties contain strings.
You may also see thin green beans (also called haricots verts) which are a French style of green beans. These work great as well!
Best way to cook frozen green beans
(The full printable recipe card with measurements and full details are at the bottom of this post)
Here’s how to cook these frozen green beans in the oven.
Add the green beans to a mixing bowl. Add the oil, salt, pepper, garlic powder, and onion powder. Stir well until it's well combined and the beans are well-coated.
Then spread out the green beans on the baking sheet in a single layer. Place in the oven and bake for 30 minutes.
Remove from the oven and enjoy straight away.
Tips and tricks for the best results
Thawing frozen green beans seem like it would make sense, but it’s actually better to cook them from frozen. Cooking thawed beans can result in mushy green beans, which is no good!
Green beans deserve salt, pepper, and seasonings to help bring out their bright flavor. Don’t under season them. The seasoning for frozen green beans in this recipe is simple and easy to make with items you probably already have on your spice rack.
Green beans can easily be undercooked. You want them to have time to roast out the extra water that is captured when they are frozen.
If you want to check for doneness, use a pair of tongs to fish out a green bean from the pan. Let it cool slightly, then take a bite. It should be mostly soft with a slight crispiness. If it is crunchy, it needs more time.
How to store leftover roasted green beans
Allow the green beans to cool completely. Place them in an airtight container in the fridge for up to 5 days.
What to serve with green beans
Green beans make a wonderful side dish for so many recipes.
How to reheat frozen roasted greens
Once you have made this recipe, they are best reheated on the stovetop. I recommend using a large skillet.
You may use a drop of oil if your pan is dry, but the beans should have retained the seasoning and should be moist enough on their own.
Cook the beans over medium heat, pushing the beans around with a silicone spatula, until heated through, about 5 minutes.
Yes! Frozen green beans are great roasted. Simply season them with oil, salt, pepper, and seasonings and place them on a baking sheet. Bake for 30 minutes at 350°F.
No, you don’t! Actually, you really shouldn’t. Thawing green beans before roasting them can result in mushy green beans.
Sure! This recipe works well with fresh beans too! But since they’re not frozen, you will need to cut back on the cooking time a little bit. They will take around 20 minutes at 350°F.
How to make this tasty side dish work for the whole family
If you have a picky eater, the seasoning and texture will be the biggest factors. Using seasoning you know they like is a great option.
In regards to texture, instead of leaving them tender-crisp texture, continue to roast them until they are softened.
Green bean toppings
While frozen roasted green beans are a perfect side dish on their own, next time try adding some toppings. Some great ones include:
- almond slivers
- balsamic vinegar
- pat of butter
- fresh parsley
- feta cheese
- red pepper flakes
- parmesan cheese
- lemon juice
More Veggie Recipes
- Oven Roasted Broccoli
- Instant Pot Green Bean Casserole
- Sauteed Butternut Squash
- Oven Roasted Garlic Brown Sugar Carrots
- Roasted Spaghetti Squash
- Honey Roasted Vegetables with Cranberries and Pecans
- Sauteed Asparagus
If you make this recipe and love it, we would love a 5 ⭐️⭐️⭐️⭐️⭐️ rating! It helps us continue to provide free recipes.
Cooking Frozen Green Beans
- Preheat oven to 425°F.
- Line a baking sheet with parchment paper.
- In a mixing bowl, combine all of the ingredients and mix until it's well combined.
- Spread the green beans on the baking sheet in a single layer.
- Place in the oven and bake for 30 minutes.
- Remove them from the oven and enjoy.
- Don’t undercook them, you want them to have time to roast out the extra water
- Don’t underseason them
- Don’t thaw them before cooking - can result in mushy green beans
Nutritional information is provided as a courtesy. It should only be used for estimation purposes and is not a guarantee of any kind. Nutritional information varies widely between brands and types of ingredients used. It is recommended that you calculate the nutritional information based on your own ingredients and brands used. Sweetly Splendid, LLC makes no guarantees as to the exact nutrition information.