Roasted Green Beans With Garlic & Parmesan
Topped with punchy garlic, fresh lemon, and melty parmesan, these oven-roasted green beans are BURSTING with flavour! They’re incredibly easy to make and only 6 ingredients – this simple vegetable side dish is ready in 30 minutes.

These garlic and parmesan roasted green beans are going to be your new favourite side dish! My husband and I absolutely DEVOURED them and almost ate the whole dish in one sitting LOL.
This recipe is perfect all year long – you can enjoy this recipe in the summer when green beans are in season, but they also make a wonderful holiday side dish. They’re a really easy option to make, which is always nice if you’re making a big dinner spread! If you need inspiration, I’ve included a bunch of serving ideas for you in this post.
As a dietitian, I’m also so happy to share that green beans are packed with so many nutrition benefits. I’ve highlighted all their nutritious goodness below, if interested. I hope you enjoy this recipe 🙂
Want more ways to cook green beans? You may also love these sautéed green beans with dijon dressing, or this green bean potato salad with maple dijon vinaigrette. Both would also make lovely side dish options!

FAQ
What temperature do you roast green beans? For how long?
I roasted these green beans in a 400F (205C) oven for 25 minutes. Depending on your oven and desire doneness (I love them a little browned!!), you may find that you can roast green beans anywhere between 15-25 minutes.
To check if they’re done, the green beans should be fork-tender with a slight bit of resistance. You’ll want them tender, but with a bit of crunch (not mushy).
Do you need to trim green beans?
Yes. Before roasting your green beans, you will want to trim the stem end. The fastest way to do this is to line a handful of the green beans up against a knife. Then, cut across the stem end to trim a bunch at the same time.
If you want to skip this step, you can look for pre-trimmed green beans in the packaged produce section.
Do you need to blanch green beans before roasting?
Blanching isn’t necessary before roasting – skip this step!
Can you roast frozen green beans?
This recipe as written is for FRESH green beans, but it is possible to roast frozen ones. I have not tried this personally, so you may need to experiment a little. Here are some tips I’ve gathered for roasting frozen green beans:
- Use directly from frozen, don’t thaw the green beans first. This means straight from the freezer to the pan!
- Get rid of as much ice as you can, to promote even cooking.
- Be sure to space green beans out so they don’t steam each other. You’ll want to use a large baking sheet instead of baking dish here.
- Ensure that you are using very high heat so that the water evaporates quickly – most frozen green bean recipes call for heat between 425-450F. In this case, I would add the parmesan halfway through to prevent burning, or stir it in at the end.

About the ingredients + possible substitutions
- Green beans: These long, brightly coloured beans are also known as French beans, string beans, or snap beans. You can find them either loose in the produce section at your grocery store, at the farmer’s market (from roughly May-October), or packaged options that are pre-trimmed. When purchasing, make sure that your beans are looking fresh – avoid ones with too many brown or mushy spots. This recipe calls for one pound of green beans, but it’s ok if you’re a bit over and/or under on the weight!
- Olive oil: While olive oil tastes bests with green beans, you may swap for another nutritious, neutral-flavoured oil like avocado oil, if desired.
- Garlic: I used freshly minced garlic which adds a nice texture when it gets roasted in the oven. You are welcome to use garlic powder, if you are in a pinch.
- Parmesan: I recommend using freshly grated parmigiano-reggiano for the best flavour and quality. If you’re vegan/dairy-free, you are welcome to swap with a dairy-free alternative OR use nutritional yeast. If using nutritional yeast, I’d use about half of what the recipe calls for parmesan. Otherwise, feel free to leave out the cheese entirely – this recipe will still be yummy!
- Lemon: Fresh lemon juice adds a lovely brightness and acidity to the green beans. If you like things extra lemony, you could also finish with a sprinkle of lemon zest.
- Parsley: Freshly chopped parsley pairs wonderfully with green beans. Use as a garnish before serving.
Full ingredient measurements and detailed instructions are located in the printable recipe card at the bottom of this post!
Visual guide: how to roast green beans in the oven

STEP 1: Trim the stem end off of your green beans by lining a handful up against a knife. Then, cut across the stem end to trim a bunch at the same time. If you’re using pre-trimmed beans, you can skip this step.

STEP 2: Transfer the green beans to a line baked sheet. Toss them in olive oil, minced garlic, salt, and pepper. Then, arrange the green beans in a single layer.

STEP 3: Top the green beans with freshly grated parmigiano-reggiano, coating them evenly.

STEP 4: Place green beans in the oven for about 20 minutes, or until they’re lightly browned, slightly tender, and the cheese is melted and crisp. Finish with a squeeze of lemon juice and fresh parsley!
What to serve with these roasted green beans
Green beans are a fiber-rich veggie. To round out your meal, I recommend serving this recipe with a protein and starch. These roasted green beans can be enjoyed all year long, but they do make a great option for a holiday spread!
For a starch pairing, why not try:
- potatoes – roasted or mashed. Green beans and potatoes are a popular flavour pairing!
- sweet potatoes – again, roasted or mashed. Roasted Japanese sweet potatoes are another favourite of mine.
- grains – like quinoa, farro, or rice
For a protein:
- baked salmon – I feel like this almond-crusted salmon or this chili baked salmon would pair wonderfully!
- white fish, like this herb-crusted baked cod
- seared scallops
- sautéed shrimp
- poultry, like chicken or turkey
- meat, like steak
- eggs – scrambled, or a frittata
- vegan proteins, like baked tofu or tempeh
TIP: since you already have the oven on, you may want to make your proteins and/or potatoes (if using) in the oven at the same time 😉
Nutrition benefits of green beans
Green beans are incredibly nutritious. To start, they’re a great source of different vitamins including:
- vitamin C
- vitamin A
- vitamin K
- vitamin B6
- vitamin E
- B-vitamins
They’re also a source of essential minerals, like:
- calcium
- iron
- manganese
- phosphorus
- potassium
- zinc
Green beans are also a good source of dietary fiber, with 1 cup of green beans providing almost 4 grams (13% of your daily needs). Fiber plays a role in heart health, blood sugar control, and digestive function!

More easy, roasted vegetable side dishes
- Roasted Honeynut Squash
- Roasted Miso Broccoli
- Maple Roasted Sweet Potatoes & Carrots
- Honey-Roasted Brussels Sprouts With Blue Cheese
- Roasted Broccolini With Kale & Honey Drizzle
Did you give this Roasted Green Beans Recipe a try? Let me know by leaving a comment and recipe rating below!
If you do make this recipe, don’t forget to tag me on Instagram or Pinterest – seeing your creations always makes my day. You can also subscribe to my email list to never miss a new recipe or nutrition education post!
Get the Recipe: Oven-Roasted Green Beans (30-Minute Side Dish)
Ingredients
- 1 pound green beans, trimmed
- 2 Tbsp olive oil
- 2 large cloves garlic, minced
- Salt + pepper, to taste
- 1/2 cup parmesan, freshly grated (I recommend parmigiano-reggiano)
- 1/2 a lemon, juice
- 1-2 Tbsp fresh parsley, chopped (to garnish)
Instructions
- Preheat oven to 400F. Line a large baking sheet with parchment.
- Place green beans on baking sheet. Toss in olive oil, minced garlic, salt, and pepper. Spread in an even layer after tossing.
- Sprinkle grated parmesan over green beans, covering evenly.
- Transfer green beans to the oven for about 20 minutes, or until they are lightly browned and the cheese is melted and slightly crispy. The beans should be fork-tender, but still have a crunch to them!
- Remove green beans from oven and top with freshly squeezed lemon juice and parsley. Season with extra salt and pepper, as needed. Serve hot!
Notes
Nutrition
As a dietitian, I create recipes with whole food ingredients that provide the nutrients needed for optimal health. My nutrition philosophy does not focus on numbers; however, I understand that this information can be helpful.
Do note that the nutrition info provided is an estimate and I cannot guarantee correctness of the displayed values. These numbers will differ depending on brands used, recipe modifications, and amount eaten. If you require specific nutrition information due to medical reasons, please consult with your dietitian or physician.
Did you make this recipe?
Let me know by leaving a recipe rating below, or by tagging @walderwellness on Instagram. I love seeing your beautiful creations!
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36 Comments on “Roasted Green Beans With Garlic & Parmesan”
I was making pasta and steak the other night and was looking for something that was practically autopilot.
I followed this exact recipe but did my own variation by also infusing garlic into the oil before tossing.
In about 17 minutes, it came out perfectly and everyone loved it. The citrus gave a vibrance that was a nice balance to the red sauce and meat.
Thank you so much for the kind review, Kav!! So happy to hear that everyone enjoyed this one. That garlic infused oil sounds like the perfect addition 🙂
What a wonderful side dish for my salmon. Loved it! Easy to make, fast
and yummy!
Thank you so much, Alicia!! I’m so happy you enjoyed this one. What a perfect pairing for salmon 🙂
I could have eaten the entire tray! I used (ample) crushed garlic that I tossed with the olive oil. Using genuinely authentic fresh grated Parmigiano-Reggiano is key to optimum taste. A great go-to recipe!!
Thanks so much for the kind words, Peg! I’m so happy to hear that you enjoyed this one and I am 100% with you on devouring the whole tray. My husband and I certainly did each time I tested this recipe LOL. Freshly grated parm is a must :)!
These are SO GOOD. I added a bit of dill to the green beans and made a dipping sauce to go with them and this is now my go to when making green beans! I had almost given up on them! I don’t know why I never thought to roast them! Thank you!!
Thank you so much for the kind review, Megan!! I’m so happy you enjoy these roasted green beans and LOVE the idea of serving them with a dipping sauce. And I know right, this recipe kind revived green bans for me too haha. Although, I do also really enjoy them in this sautéed green bean dish I made a few years ago, too 😉
So good! Used my fresh garden beans and the kids loved it too!
Thank you for the kind review, Julie!! So happy to hear you and the kids enjoyed it :)! Those fresh garden beans sound so tasty!!
I’ve made these twice now. A fantastic recipe(!) and so easy. Both times I skipped the lemon juice, just because I never seem to have it on hand. Definitely a keeper. Thank you.
Thank you so much for the kind words, Roberta!! So happy to hear you’ve been enjoying these green beans. Hopefully you get a chance to try with lemon juice one day, it just adds a little extra punch 🙂
good day
Mt wife and I are in Medicine and are very dietary aware.
vegetables and fish are a large part of our diet.
Thanks for adding to our vegetable recipes
Geoffrey Hart
That’s great to hear, Geoffrey! I hope you both enjoyed this recipe 🙂
Hi! I am planning on making this for thanksgiving and wanted to confirm that the recipe calls to use the “roast” setting at 400 degrees and not the “bake” setting at 400 degrees. Can’t wait to try – thank you!
Hi Shanaya! Thanks so much for your question. I personally have never had an oven that differentiates between a “roast” and “bake” setting, so I can’t quite say for sure as perhaps you have a different kind of oven! I will say though, that “roasting” typically refers to cooking with an oven temperature at 400F and above, whereas “baking” involves cooking at an oven temperature of 375F or below. So yes, technically these are “roasted.”
I hope that helps to clarify and I so hope you enjoy this recipe for Thanksgiving! Happy holidays 🙂
Delicious! I used garlic-infused oil and roasted for 15 min – perfection.
Thank you so much for taking the time to leave a review!! I’m so happy you enjoyed these green beans – that garlic infused oil sounds absolutely perfect here 🙂
My husband and I host Christmas dinner neither us are a fan of that green bean casserole. I saw this and made it as a test run with dinner. My husband said those were the best green beans he had ever eaten let’s add to the menu. Well we did and what a hit for 20 people including kids, over 5lbs of beans they were gone. Avocado oil works really well too. 😋
Thank you so much for the kind words, Robbi!!! This makes my day to read – 20 people and 5 pounds of green beans gone! So happy to hear this was a hit at Christmas dinner. I hope you had a wonderful holiday 🙂
These green beans were outrageously delicious, particularly given how simple they were to prepare. Thank you!
I’m so happy to hear you enjoyed them, Carianne!! Thank you for taking the time to leave a review 🙂
Great recipe!!
Thanks so much, Stephanie!!
I first made this for a New Years Day side. My guests were obsessed!
I’ve made this regularly for my boyfriend and me, since.
Had some others other, made this, it was their favorite!
This recipe rocks! Thank you so much for sharing it! ❤️
Thank you so much for the kind words, Kyla!! I’m so happy this recipe has been a hit with everyone and that you’ve been enjoying it so frequently!! That makes my day to hear 🙂
Hi! So I don’t have a lot of experience with green beans. A couple months ago j attempted a green bean casserole for the first time. It failed horribly because I guess I was supposed to steam and blanch them before putting them in the oven and the recipe (not by you) didn’t say that. So I am just curious do I need to do anything to the green beans before following your recipe? Or do i take them fresh and whole from the bag trim the ends and just cook them as you say to? I’m worried as without pre cooking them the other recipe took an hour for them to even soften so I’m curious about how they will even cook in the oven this time. Thank you I just don’t want to mess it up again.
Hi Jackie! Thanks so much for your question and I apologize for the delayed response – I have been on maternity leave the past couple months 🙂
This recipe is meant to use whole fresh green beans – no need to pre-cook them. It’s been a hit with readers (and one of my go-to side dishes) – I hope it works out for you!!
A healthy food item prepared with organic ingredients. It will be very easy to prepare at home following your instruction. Can honey mix with your roasted beans?
I hope you enjoy it, Shrea! I have not tried honey with this recipe, but perhaps a little drizzle at the end could be delicious?!
I made this recipe, only added one item because it is what I am used to making. Add Montreal steak seasoning, just a little sprinkle. Turned out fantastic, not to different from sauted. Would nit change a thing.
Thank you so much for sharing your experience, Sharon! I’m not familiar with that seasoning but sounds delicious!!
These are absolutely delicious!! So easy, so simple, and soooo good. I would just mention that you have about a two minute window before the cheese starts to cool and become crunchy, after which they are still delicious but not nearly as good. The recipe did say to serve hot, but I guess I was unaware of how quickly a few minutes out of the oven would affect the dish. Thank you!!!
Thank you so much for sharing your experience, N! So happy you enjoyed this recipe! Appreciate the insights on the cheese cooling (although I do like crunchy cheese haha) – I personally always scarf these down immediately LOL but that’s helpful to hear 🙂
These beans were completely delicious. I don’t think I’ll cook them any other way from now on.
Thank you so much, Michelle!! So glad you enjoy them roasted now 🙂