These Roasted Frozen Green Beans are a deliciously easy side dish with green beans straight from the freezer, generously tossed with savory spices and parmesan cheese and roasted.

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roasted frozen green beans sprinkled with grated parmesan

Reasons You’ll Love This Recipe:

Flavorful – can’t call these green beans boring with all of the flavor, plus topped with the crisped parmesan cheese!
Easy and Convenient – keep a bag of green beans in your freezer and you’ll always be ready to make these roasted frozen green beans for an easy side.
Customizable – change up the seasonings, ditch the parmesan to make it dairy-free, add some lemon juice — there are so many ways you can change up these green beans!
Kid-Friendly – of course, every house is different, but green beans are always a hit in my house!

Ingredient Notes & Substitutions:

For a full ingredient list with quantities, please check out the recipe card at the bottom of this post.

ingredients to make roasted frozen green beans

Green Beans – you need a bag of frozen green beans — I like the ones labeled “fine” green beans, as they’re longer and thinner than the “cut” frozen green beans.
Oil – I recommend avocado oil due to its higher smoke point/ ability to cook well at higher temps, but you can also use extra virgin olive oil.
Seasonings – garlic powder, onion powder, salt, and pepper
Parmesan – partially through roasting, you’ll toss the green beans and top with grated parmesan. It melts, parts get a little crispy, and add the most delicious finish.

How to Make Roasted Frozen Green Beans

For complete instructions, please check out the recipe card at the bottom of this post.

drizzling oil over a bowl of frozen green beans

tossing frozen green beans with oil and seasonings

Add oil and seasonings to a bowl of the frozen green beans and toss to combine.

spreading out frozen green beans to roast on a sheet pan

adding parmesan on top of roasted frozen green beans

Spread frozen green beans out onto a sheet pan and roast. Part way through roasting, flip the green beans on the pan, then top with grated parmesan and return to the oven until the parmesan has melted and gotten a little crispy.

Tips and Variations

Don’t crowd the green beans. You want to space them out on the sheet pan as best as you can, and try to make sure they’re not overlapping and touching. This will allow more of the moisture to escape and help them get crispy.
Opt for frozen fine green beans instead of cut green beans. The fine green beans are longer, thinner, more tender, and look a little fancier, if you’re wanting to serve at a more elevated meal.
Need dairy-free? Skip the parmesan, or substitute with your favorite non-dairy parmesan alternative.

sheet pan of roasted frozen green beans with parmesan

Can You Meal Prep Frozen Green Beans?

You sure can! Note that the won’t be crispy once refrigerated and if reheated in the microwave, but they still will be tender and pack delicious flavor.

Store the green beans in an airtight container in the fridge for up to 3 days. For optimal results, reheat under the broiler or in the air fryer for a few minutes.

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