Quick Radish Cucumber Salad with Lemon-Dill Dressing

This radish cucumber salad is what I throw together when dinner needs something cold, crunchy, and on the table in 10 minutes. It’s a no-cook side that goes with just about anything.

Thin-sliced radishes and cucumber soak up a lemony dressing packed with fresh dill. Every bite is bright, icy-crisp, and the kind of light that makes a heavy meal feel balanced.

Why This Salad Works

The dressing is three ingredients plus salt and pepper, so you can measure it out without pulling a recipe.

Radishes and cucumber both have high water content, which means the salad tastes refreshing without needing chilling.

Fresh dill gives it a clean, herbal lift that dried herbs just can’t match.

Ingredients

• 1 bunch radishes (about 8 oz): look for firm, small radishes with no cracks
• 1 English cucumber: no need to peel; regular cucumber works too but peel and seed it
• 1/4 cup thinly sliced red onion: optional, but adds a nice sharp bite
• 2 tbsp chopped fresh dill: swap with mint or parsley if you prefer
• 3 tbsp fresh lemon juice: about 1 large lemon
• 2 tbsp extra-virgin olive oil:
• 1/2 tsp kosher salt:
• 1/4 tsp black pepper:
• 1 tsp sugar or honey: optional, just enough to round out the acid

Variations / Substitutions

• Herb swap: Fresh mint or cilantro works instead of dill; each gives a completely different personality.
• Add creaminess: Toss in a handful of crumbled feta or diced avocado before serving.
• Make it spicy: Add a pinch of red pepper flakes or a few thin slices of jalapeño.
• Change the acid: Use white wine vinegar or lime juice if you’re out of lemon.
• If you like this, our Simple Tomato Avocado Salad is a good one to try next.

How To Make Quick Radish Cucumber Salad

Step 1: Slice the Vegetables

Use a mandoline or a sharp knife to slice the radishes and cucumber into thin, even rounds (about 1/8 inch thick). If you’re using red onion, slice it just as thin. The thinner the slices, the better they soak up the dressing.

Step 2: Whisk the Dressing

In a large bowl, whisk together 3 tablespoons lemon juice, 2 tablespoons olive oil, the salt, pepper, and sugar (if using). Whisk for about 30 seconds until the salt dissolves. Stir in the fresh dill.

Step 3: Toss and Serve

Add the sliced radishes, cucumber, and onion to the bowl with the dressing. Toss gently until everything is coated. Serve right away for maximum crunch, or let it sit for 10 minutes to let the flavors come together. The salad will still be crisp.

Tips for the Best Radish Cucumber Salad

• Use the freshest radishes you can find; they should be firm with crisp green tops. Limp radishes make a limp salad.
• A mandoline gives you paper-thin, even slices that almost melt into the dressing, but watch your fingers.
• Don’t dress the salad until you’re ready to eat. The vegetables release water quickly once salted, and it can become soupy.
• If you want to prep ahead, slice the vegetables and store them in separate containers in the fridge. Shake the dressing in a jar. Toss together just before serving.
• A tiny bit of sweetener wakes up the lemon without making the salad taste sweet. Taste the dressing and add more if your lemon is especially tart.

Scale it up for a larger crowd:

Storing Leftover Salad

Refrigerate dressed leftovers for up to a day, though the vegetables will soften. For the best texture, store undressed vegetables and dressing in separate airtight containers for up to 2 days.

What Goes Well With Quick Radish Cucumber Salad

Lightly charred chicken thighs or a piece of simple pan-seared fish let the salad’s sharpness cut through the richness. A juicy burger works, too. The crunch and acid keep the plate from feeling heavy.

Frequently Asked Questions

Do I need to peel the cucumber?

No, English cucumbers have thin, unwaxed skins that are good to eat. If you’re using a regular cucumber, peel the thick, waxy skin and scoop out the seeds before slicing.

What’s the best way to slice radishes?

A mandoline makes quick, paper-thin rounds, but a sharp chef’s knife and a steady hand work too. Aim for slices no thicker than 1/8 inch so they absorb the dressing.

Can I use dried dill?

You can, but the flavor will be a lot less vibrant. Use 2 teaspoons dried dill in place of the fresh, and rub it between your fingers to release the oils before adding it.

Why did my salad turn pink?

This happens because the radish skins can bleed their color into the dressing, especially if it sits. It’s harmless and just a sign of fresh radishes. A splash of vinegar can reduce the pink hue if it bothers you.

Quick Radish Cucumber Salad Recipe

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Prep Time 10 minutes mins

Total Time 10 minutes mins

Servings: 4 servings

Calories: 78

Ingredients Method Notes

Ingredients

  

• 1 bunch radishes (about 8 oz), trimmed and thinly sliced
• 1 English cucumber, thinly sliced (do not peel)
• 1/4 cup thinly sliced red onion (optional)
• 2 tbsp chopped fresh dill
• 3 tbsp fresh lemon juice
• 2 tbsp extra-virgin olive oil
• 1/2 tsp kosher salt
• 1/4 tsp black pepper
• 1 tsp sugar or honey (optional)

Method

 

1. Thinly slice the radishes, cucumber, and red onion (if using) into rounds about 1/8 inch thick.
2. In a large bowl, whisk together the lemon juice, olive oil, salt, pepper, and sugar (if using) until the salt dissolves. Stir in the dill.
3. Add the sliced vegetables to the bowl and toss gently until evenly coated. Serve immediately.

Notes

If you have time, let the dressed salad sit at room temperature for 10 minutes before serving; the radishes soften slightly and absorb the flavors. For a regular cucumber, peel and seed it first. Leftover salad will soften but still tastes good for a day, though it’s best fresh.