A perfectly grilled steak sizzling on the barbecue grill, showcasing its appetising char and juicy texture.

Beef with Mustardy Lentils and Mint

Use up your leftover roasted beef and make this tasty homemade dish! It’s perfect for a lunchbox, a picnic, or as part of a cold-cuts lunch or buffet spread. Enjoy delicious flavours while reducing food waste!
40 mins
serves 4

Method

  • Cook the Lentils:
    • Put 200g lentils in a saucepan and cover them with plenty of cold water. Add 1 bay leaf.
    • Bring to a boil, then reduce to a simmer. Cook for about 20 minutes until the lentils are al dente.
    • Check them after 15 minutes and taste. If they need more time, keep cooking. Add more water if needed.
  • Sauté the Vegetables:
    • In another pan, heat 2 tablespoons of oil over medium heat.
    • Add 1 chopped onion and 1 chopped celery stick. Cook gently for about 5 minutes until softened but still crunchy.
    • Remove from heat and set aside.
  • Combine Ingredients:
    • Once the lentils are cooked, drain them and remove the bay leaf.
    • Return the lentils to the warm pan.
  • Make the Dressing:
    • In a bowl, whisk together 2 tablespoons olive oil, 1 tablespoon vinegar, salt, and pepper.
    • Pour the dressing over the warm lentils along with the sautéed onion and celery. Stir well and let it cool.
  • Add Final Touches:
    • Toss in 200g cooked beef (sliced or shredded) and a handful of chopped fresh mint.
    • Taste and add more salt and pepper if needed.
  • Serve:
    • Enjoy your lentil salad warm or at room temperature!

Ingredients

  • 200g Puy lentils
  • 1 bay leaf
  • 2 tbsp rapeseed or olive oil
  • 1 onion, finely chopped
  • 1 celery stalk, finely chopped
  • 200g cold roast beef, cut into strips or torn into rough shreds
  • 2 tbsp roughly chopped mint

For the dressing

  • 2 good tsp English mustard
  • 2 tsp cider vinegar
  • 3 tbsp rapeseed or extra virgin olive oil
  • Sea salt and freshly ground black pepper
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