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Slow-Cooked Green Beans with Harissa and Cumin

This vibrant vegan side dish elevates the humble green bean into something truly spectacular. By slow-cooking the beans in a generous amount of extra-virgin olive oil infused with spicy harissa and aromatic cumin seeds, they transform from crisp vegetables into tender, flavour-soaked morsels. The addition of roasted garlic provides a mellow sweetness that balances the heat of the North African chilli paste, resulting in a sophisticated dish that is as beautiful as it is delicious.

Perfect for a weekend roast or as part of a Mediterranean-style spread, these slow-cooked green beans offer a healthy, plant-based option that doesn't skimp on depth. The final splash of sherry vinegar provides a bright acidity that cuts through the richness of the oil, making it an excellent companion to grilled proteins or simple grains. Enjoy it warm or at room temperature for the best flavour profile.

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Ingredients for Slow-Cooked Green Beans with Harissa and Cumin

  • 450g green or other snap beans, trimmed

  • 1/2 head of garlic

  • 120ml extra-virgin olive oil

  • 1 tablespoon harissa paste

  • 3/4 teaspoons cumin seeds

  • 3/4 teaspoons kosher salt

  • 1 tablespoon sherry vinegar

Place a rack in middle of oven and preheat to 177°C. Toss green beans, garlic, oil, harissa, cumin seeds, and salt in a shallow 2-qt. baking dish to combine.

Turn garlic cut side down, then roast vegetables, tossing 2 or 3 times, until golden brown and very tender, 60–70 minutes. Let cool slightly, then add vinegar and toss to coat.

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.

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UK recipe editors

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UK recipe editors

Article history

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

  • 28 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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