Oven-roasted green beans (20 min): crispy & tasty

Sep 24, 2025Lou0 comments
Oven • Homemade green beans • Tips & flavors

Oven-roasted green beans (20 min): crispy & tasty

Baked Green Beans Time and Temperature

Want to turn plain green beans into a delicious side dish? Discover oven-baked green beans: crispy on the outside, soft on the inside, golden and delicious in less than 25 minutes! 🥗 A real treat for enhancing this seasonal vegetable, whether fresh or frozen.
This guide explains how to cook successfully, how to vary the pleasures (spices, cheeses, herbs, etc.) and avoid common pitfalls. You'll also find a comprehensive FAQ and links to ultra-fresh green beans or a variety of recipes to enjoy all year round. 🍋🥄

By Lou
Neary Kitchen Tested • Updated:
✅ Express response
Want perfect roasted green beans? Preheat your oven to 210°C, season, spread on a baking sheet, and bake for 18 to 22 minutes (stir halfway through). The result: golden, crispy beans, full of flavor, effortlessly! Use olive oil, minced garlic, pepper, and why not add a little parmesan or lemon 🍋. Perfect with farm-fresh or even frozen green beans . 🥗
Anti-waste tip 🌱: If you have beans that are a bit past their prime, don't hesitate to roast them; it masks the wear and tear and gives them a new lease of life! You can also add some yellow beans for color. And if you're feeling lazy, frozen beans work very well too 😎.

Time & Temperature for Roasted Green Beans

Kind Preheating Temperature Time Preparation Trick
Fresh green beans Yes 210 °C 18–22 min Stemmed, well dried, oil + spices Stir halfway through cooking 🔄
Frozen green beans Yes 210 °C 21–25 min Frozen, no thawing, oil + spices Cooking time a little longer 🕒
Green/yellow bean mix Yes 210 °C 20–24 min Various colors, same technique Stunning visual effect 🌈
Larger/older beans Yes 210 °C 22–27 min Blanch for 2 minutes, drain well, then place in the oven. Stay tender at heart 🍴

How to make easy oven-roasted green beans?

  1. Preheat your oven to 210°C (fan-assisted if possible, otherwise static oven works too!) 🔥.
  2. Prepare the green beans: trim them, rinse them in cold water, and dry them well in a cloth. The drier they are, the crispier they will be!
  3. Season in a large bowl: olive oil, salt, pepper, minced garlic, paprika, curry, or even a little parmesan depending on your mood. Let yourself be guided by your desires of the day 🥄.
  4. Spread them out on a baking sheet lined with baking paper, flat, without crowding them — this is the key to even browning.
  5. Bake for 18 to 22 minutes, stirring halfway through. The green beans should be lightly browned and still tender.
  6. Finishing : Add a lemon zest, a little fleur de sel or grated cheese just before serving for that little extra twist 🧀🍋.

FAQ — Green Beans Oven Time

Should green beans be blanched before baking?

Not mandatory! If your beans are young and thin, you can roast them directly. For larger or older beans, blanch them for two minutes in boiling water then dry them well. This prevents them from becoming fibrous 😉.

Can you cook frozen green beans in the oven?

Yes, no problem! Spread them out while still frozen on the baking sheet, oil generously, season, and cook for 3 to 4 minutes longer. Amazing results even without defrosting 🥶.

Which oil should I use for roasting green beans?

Olive oil remains the star for taste and health 🥗. You can vary with sunflower or grapeseed oil if you want a more neutral flavor.

How to prevent beans from drying out?

Don't skimp on the oil (but don't drown it!), mix them well before cooking, and keep an eye on them for the last few minutes to stop as soon as they are golden but still tender. A squeeze of lemon when they come out and presto, it's perfect!

Any ideas for original seasonings?

Try roasted garlic, smoked paprika, curry, parmesan, lemon zest, or even some sesame seeds to spice things up! You can also add yellow beans or walnuts for a crunchy touch 😍.

Ideas for varying, succeeding & recycling your green beans

  • Add chickpeas, potatoes, or cherry tomatoes to the baking sheet for a complete skillet in one oven! 🍅🥔
  • Sprinkle with parmesan, breadcrumbs or pumpkin seeds at the end of cooking for a crunchy touch 🤩.
  • Recycle leftovers into a homemade green bean salad (cold or warm, delicious!).
  • For a summery touch, mix green and yellow beans, a rainbow on the plate 🌈.
  • Try the sweet chili, candied garlic or lime version for a change of mood 🌶️.
Little bonus : Kids love dipping roasted beans in a yogurt-lemon or cream cheese sauce, guaranteed to give a “vegetable fries” effect! 😋

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