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Flat beans with mustard thyme vinaigrette recipe

Flat beans with mustard thyme vinaigrette is a vibrant vegan dish that celebrates the fresh, crisp flavours of seasonal produce. The romano beans are perfectly complemented by a tangy dressing made with cider vinegar, Dijon mustard, and fragrant thyme, creating a delightful balance that elevates any meal. This dish not only showcases the natural sweetness of the beans but also adds a touch of sophistication with its herby notes.

Ideal for a light lunch or as a side at dinner, this recipe is quick to prepare, making it perfect for busy weeknights. The healthy fats from extra virgin olive oil and the wholesome ingredients ensure a nutritious option that leaves you feeling satisfied. Serve it alongside crusty bread or as part of a larger spread for a delightful plant-based feast.

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Ingredients for Flat beans with mustard thyme vinaigrette

  • 15 ml cider vinegar

  • 5 ml Dijon mustard

  • 5 ml chopped thyme

  • 1 small garlic clove, minced

  • 60 ml extra virgin olive oil

  • 1,125 g romano beans, trimmed

How to make Flat beans with mustard thyme vinaigrette

  1. Whisk together the vinegar, mustard, thyme, garlic, and ½ tsp each of salt and pepper in a bowl. Then, slowly drizzle in the oil while whisking until well blended.

  2. Bring a large pot of salted water to the boil. Add the beans and cook until tender, about 7–10 minutes.

  3. Drain the beans and toss them with the dressing. Season with additional salt and pepper to taste.

  4. Serve the beans warm or at room temperature.

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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Article history

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

  • 30 Oct 2025 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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