Roasted Frozen Green Beans in Oven

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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Try these simple Roasted Frozen Green Beans on a busy weeknight!

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.

Green beans go well with so many dishes and cuisines, like French Onion Meatballs or Honey Garlic Chicken. They’re an easy side dish for weeknight dinners.

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The name string bean is actually somewhat outdated.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!

Frozen Green Beans Recipe Ingredients

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.

If you prefer, you can use a seasoning salt like Lawry’s or Krazy Jane’s instead of the salt, pepper, garlic, and onion powders. Italian seasoning will give it great flavor as well.

How to cook Frozen Green Beans in Oven

(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. 

1. First, preheat the oven to 425ºF. Line a baking sheet with parchment paper. You can also use a silicone baking mat.
2. 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. 
3. Then spread out the green beans on the baking sheet in a single layer. Place in the oven and bake for 30 minutes. 
4. Remove from the oven and enjoy straight away. 

Storing leftover Roasted Frozen 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 this Roasted Frozen Green Beans Recipe

Green beans make a wonderful side dish for so many recipes. 

One of my favorites is as a green veggie to go with any kind of meat and potatoes. Whether it’s steak and baked potatoes, crispy fried pork chops, or lemon chicken and mashed potatoes. 

Try them with an Asian dish like orange chicken or beef teriyaki. 

Green beans also work well with fish dishes. This baked lemon butter salmon can be cooked in foil in the oven alongside your veggies. 

Reheating Frozen Green Beans in Oven

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.

An alternative method would be to use your air fryer. Place the beans in the air fryer basket and heat at 350°F until heated through.

Toppings to add to Roasted Frozen Green Beans

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

Frozen Green Beans FAQs

products I used to make frozen green beans in the oven

baking sheet

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parchment paper

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measuring spoons

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mixing bowls – stainless steel

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tongs

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• Sauteed Butternut Squash
• Oven Roasted Garlic Brown Sugar Carrots
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• Honey Roasted Vegetables with Cranberries and Pecans
• Sauteed Asparagus

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