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The Best Cucumber & Radish Salad

  • Ready in 10m
  • 4.2 g net carbs
  • 234 kcal
  • Serves 6
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The Best Cucumber & Radish Salad (low-carb, keto, vegetarian)

If you're looking for the perfect summer salad, this is by far the best cucumber salad I've tried! The Best Cucumber & Radish Salad is fresh, creamy, and crunchy, while also being low-carb, keto-friendly, and completely dairy-free.

With crisp cucumbers, peppery radishes, and a tangy, mayo-based dressing, this salad comes together in just 10 minutes. It's ideal as a light meal or a side for grilled meats, seafood, or any summer BBQ. Trust me—once you try it, you'll see why it’s the best!

Recipe Tips & Swaps

  • Mayonnaise Substitutes: If you don’t have avocado oil mayonnaise on hand, you can make your own Classic Mayonnaise or Quick Blender Garlic Mayonnaise use regular mayo or make your own using avocado oil. For a vegan option, try a plant-based mayonnaise.
  • Add More Flavor: Feel free to play around with the dressing. A splash of coconut vinegar or apple cider vinegar adds a bit of extra tang, while a teaspoon of low-carb sweetener balances out the acidity nicely.
  • Dressing Swap: If you can do dairy, try with my Low-Carb Ranch Dressing instead of the mayo dressing!
  • Herb Swap: Dill is the traditional herb for this salad, but fresh parsley, cilantro, or chives would also work well. Each herb gives the salad a slightly different flavor profile.
  • Radish Alternatives: If radishes aren’t your favorite, thinly sliced bell peppers or even jicama can provide a similar crunch with a milder taste.
  • Make It Sweet: Some like a little sweetness in their creamy cucumber salads. If that’s you, adding a teaspoon or two of powdered low-carb sweetener like Allulose or Erythritol will do the trick.
  • Make It Tangy: Looking for more flavor? Use these easy Pickled Radishes instead of fresh ones!

Storage

This salad is best enjoyed fresh, as the cucumbers and radishes will lose their crunch after sitting in the dressing for too long. However, if needed, you can store it in the fridge for up to 2 days. Just keep in mind the veggies might release some water over time, so give it a good stir before serving. This recipe is not suitable for freezing.

Serving Ideas

This salad is perfect as a side with grilled chicken, steak, barbecued fish, or crispy duck breast. It’s also a great light dinner on its own or served with a slice of keto bread. Try with any of these options:

Step-by-step

  1. Prepare the dressing by mixing the lemon juice and mayonnaise.

    The Best Cucumber & Radish Salad (low-carb, keto, vegetarian)
  2. Season with salt and pepper to taste. Optionally, add 1-2 teaspoons of vinegar and low-carb sweetener to taste. Add freshly chopped dill and mix well.

    The Best Cucumber & Radish Salad (low-carb, keto, vegetarian)
  3. Using the slicing attachment on your food processor or a knife, thinly slice the cucumbers and radishes.

    The Best Cucumber & Radish Salad (low-carb, keto, vegetarian)
  4. Slice the red onion. Place the sliced vegetables in a mixing bowl.

    The Best Cucumber & Radish Salad (low-carb, keto, vegetarian)
  5. Pour the prepared dressing over the sliced vegetables.

    The Best Cucumber & Radish Salad (low-carb, keto, vegetarian)
  6. Mix until well combined. Serve as a side with meat or fish, as an appetizer, or light dinner. Eat immediately, or store in the fridge for up to 2 days.

    The Best Cucumber & Radish Salad (low-carb, keto, vegetarian)
The Best Cucumber & Radish Salad

Recipe

The Best Cucumber & Radish Salad

★★★★★4.9 (134 ratings)

This creamy Cucumber & Radish Salad is the perfect low-carb, keto, and dairy-free side dish. Ready in just 10 ...

Hands on
10m
Overall
10m
Servings
6
4.2 g
Net carbs
1.7 g
Protein
23.2 g
Fat
234
kcal
PinRate

Ingredients makes 6 servings

Instructions

  1. Prepare the dressing by mixing the lemon juice and mayonnaise.

  2. Season with salt and pepper to taste. Optionally, add 1-2 teaspoons of vinegar and low-carb sweetener to taste. Add freshly chopped dill and mix well.

  3. Using the slicing attachment on your food processor or a knife, thinly slice the cucumbers and radishes.

  4. Slice the red onion. Place the sliced vegetables in a mixing bowl.

  5. Pour the prepared dressing over the sliced vegetables.

  6. Mix until well combined. Serve as a side with meat or fish, as an appetizer, or light dinner. Eat immediately, or store in the fridge for up to 2 days.

Nutrition per serving, about 225 g/ 8 oz

Carbs 7%Protein 3%Fat 90% of calories

Net carbs
4.2 g
Total carbs
6.1 g
Fiber
1.8 g
Sugars
3.6 g
Protein
1.7 g
Fat
23.2 g
Saturated fat
3.3 g
Calories
234 kcal
Sodium
110 mg · 4.79% RDA
Magnesium
23 mg · 5.77% RDA
Potassium
324 mg · 16.2% EMR
Nutrition by ingredient
Per about 225 g/ 8 ozNet carbsProteinFatkcal
Mayonnaise0.2 g0.3 g22.8 g204
Lemon juice, fresh0.3 g0 g0 g1
Salt, pink Himalayan rock salt0 g0 g0 g0
Pepper, black, spices0 g0 g0 g0
Dill, fresh0.1 g0 g0 g1
Cucumber, fresh2.2 g0.9 g0.2 g18
Radishes, raw0.6 g0.2 g0 g5
Onion, red, fresh0.9 g0.2 g0 g6
Total4.2 g1.7 g23.2 g234

Serving size about 225 g/ 8 oz

  • Gluten free
  • Dairy free
  • Nut free
  • Nightshade free
  • Pork free
  • Avocado free
  • Coconut free
  • Fish free
  • Shellfish free
  • Beef free
  • Pescatarian
  • Vegetarian

Goes well with

Add a side and it's a complete meal.

Serve it with

Dishes that go well with a side salad.

Comments & ratings (4)

4.9134 ratings
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  • 4 ★12
  • 3 ★1
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  1. Mara

    Hi Martina , I love radish family . I came across of this recipe and would like to share with you .I am making today 😊 . I think the dressing should be mixed and then merged with the vegetables but hey great colors and choices .
    http://lifesdandies.com/broiled-mahi-mahi-with-gomasio-and-spanish-black-radish-slaw/

    1. Martina @ KetoDiet

      Thank you Mara, that dish looks delicious!

  2. Janet

    Great recipe! All of my favourite ingredients! I see mixed reviews that onion is not Keto friendly?

    1. Martina @ KetoDietAuthor

      Hi Janet, onion can definitely be part of a keto diet (in moderation): Complete Keto Diet Food List: What to Eat and Avoid on a Low-Carb Diet

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