Skip to main content

Slow-Roasted Green Beans with Sage

Peer reviewed by UK recipe editorsAuthored by UK recipe editorsOriginally published 16 Jan 2026

Meets Patient’s editorial guidelines

This slow-roasted green beans with sage recipe transforms a simple garden vegetable into a deeply savoury and aromatic side dish. By roasting the beans at a steady temperature alongside fragrant woody herbs and spring onions, they lose their crunch and develop a tender, almost caramelised texture. The combination of garlic and fresh rosemary provides a robust flavour profile that works beautifully during the cooler months, offering a sophisticated alternative to traditional steamed greens.

As a naturally vegan dish, it is an excellent addition to a plant-based feast or a classic Sunday roast. The slow-cooking process draws out the natural sweetness of the spring onions, creating a rich accompaniment that requires very little active preparation. Serve these beans alongside roasted root vegetables or a nut roast for a wholesome, comforting meal that highlights the best of seasonal herbaceous flavours.

In this article:

Continue reading below

Ingredients for Slow-Roasted Green Beans with Sage

  • 1.1kg tender green beans, trimmed

  • 3 bunches spring onions, trimmed with 1" green tops still attached, halved lengthwise

  • 6 large garlic cloves, each cut lengthwise into 4 slices

  • 1/2 cup olive oil

  • 2 tablespoons fresh sage leaves

  • 1 tablespoon fresh rosemary leaves

  • 1 tablespoon fresh thyme leaves

  • 2 teaspoons kosher salt

  • Freshly ground black pepper

How to make Slow-Roasted Green Beans with Sage

Preheat oven to 191°C. Combine first 8 ingredients in a large bowl and season with pepper. Toss to evenly incorporate. Transfer beans to a large rimmed baking sheet.

Roast beans, stirring every 10 minutes, until wilted, shrunken, and browned at edges, about 1 hour. (You may need to stir more often toward end for even browning.)

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 16 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
flu eligibility checker

Ask, share, connect.

Browse discussions, ask questions, and share experiences across hundreds of health topics.

symptom checker

Feeling unwell?

Assess your symptoms online for free

Sign up to the Patient newsletter

Your weekly dose of clear, trustworthy health advice - written to help you feel informed, confident and in control.

Please enter a valid email address

By subscribing you accept our Privacy Policy. You can unsubscribe at any time. We never sell your data.