Watercress and Smoked Trout Salad

Peppery watercress and smoked trout make a crisp, no-cook salad with a distinctly British feel: light enough for lunch, but satisfying thanks to the rich, gently smoky fish. Thin cucumber adds cool crunch, while lemon zest, lemon juice, olive oil and Dijon form a clean dressing that sharpens the leaves without masking the trout. Keeping the fish in generous flakes gives the salad texture and makes each bite feel deliberate. Serve it as soon as it is tossed, when the watercress is still lively and the dressing tastes bright.
Recipe by JustRecipes Editorial Team
Content validated: August 2026 How we create recipes
Made this recipe? Rate it
Cuisine style British light lunch
Flavor profile Peppery • Citrusy • Fresh • Lightly smoky
Techniques No-cook preparation • Whisking dressing • Gentle tossing
Cooking style No-cook preparation • Minimal cleanup
Time commitment Under 15 minutes

Why this recipe works

  • Ready in minutes: With no cooking required, the salad comes together quickly from a simple whisked dressing and ready-to-eat smoked trout.
  • Sharp, clean dressing: Lemon juice and Dijon bring enough acidity to balance the richness of the smoked fish without masking its flavour.
  • Fresh contrast: Crisp cucumber and lively watercress keep the salad light against the soft, savoury flakes of trout.

Get the most out of this recipe

Timing notes

  • Serve straight away: Watercress softens once dressed, so toss the leaves just before serving for the freshest texture.
  • No cooking required: Most of the time is spent slicing the cucumber, whisking the dressing and flaking the trout.

Ingredient notes

  • Choose lively watercress: Look for crisp, dark green leaves with a fresh peppery aroma; tired leaves will wilt quickly in the dressing.
  • Keep the trout in flakes: Larger pieces of smoked trout give the salad better texture and keep the fish distinct from the leaves.
  • Adjust the lemon: Taste the dressing before tossing and add a little more lemon juice if you prefer a sharper finish.

Ingredient swaps

  • Use smoked salmon: Smoked salmon can replace smoked trout for a similar smoky, silky result.
  • Try whole-grain mustard: Whole-grain mustard gives the dressing a milder flavour and a little extra texture.

Serving ideas

  • Make it more substantial: Serve with buttered new potatoes, rye bread or sourdough for a fuller lunch.
  • Plate gently: Arrange the dressed leaves first, then scatter the trout over the top so it stays visible and intact.

Equipment you'll need

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Ingredients
Instructions
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  1. Finely grate the lemon zest into a mixing bowl, then squeeze in 2 tbsp lemon juice. Whisk in the dijon mustard, then whisk in the olive oil until lightly emulsified.
  2. Slice the cucumber thinly. Add the watercress and cucumber to the bowl and toss gently to coat in the dressing.
  3. Flake the smoked trout into bite-sized pieces and scatter over the salad. Serve immediately while the watercress is crisp.

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Recipe notes

Tips

  • Taste the dressing before tossing and add a little more lemon juice if you want it sharper.
  • Keep the smoked trout in larger flakes so it stays distinct and does not disappear into the leaves.

Substitutions

  • Replace dijon mustard with whole-grain mustard for a milder, more textured dressing.
  • Replace smoked trout with smoked salmon for a similar flavour and texture.

Storage

  • Refrigerate up to 1 days
  • Best eaten straight away. If needed, keep the dressed watercress and cucumber separate from the smoked trout in the fridge and combine just before serving; the leaves will soften once dressed.

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Recipe overview

  • Servings: 2 servings
  • Total time: 10min (10min active)
  • Difficulty: Easy
  • Cuisine: British
  • Allergens:
    Fish Mustard
Beginner friendly
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Equipment you'll need

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