Nothing beats a refreshing fresh cucumber tomato onion salad with a delicious, easy dressing. This recipe makes the perfect side salad, loaded with crunchy textures and flavors. What makes this salad so good is the combination of basic vegetables that come together to create an incredible summer salad. 

A salad bowl with the tomato cucumber onion salad in it.

One thing I love is simple salads. Give me a fresh tomato and onion salad, and I’m happy! The most important part of a salad is not a hundred different ingredients but just a few fresh ingredients. That’s why this tomato cucumber salad is such a classic: it’s simple, yet the flavors shine through. Serve this salad with homemade pelmeni for a well-rounded meal!

Why You’ll Love This Recipe

This summer salad is perfect for using up all the vegetables you have in your fridge (and your garden, if you’re lucky). This salad is incredibly easy to customize and is always a crowd-pleaser. Take these simple staple ingredients and the base and build on the salad!

Ingredients for Cucumber Tomato Onion Salad:

The fresh vegetables make this salad what it is!

  • Tomatoes – for the best flavor, use ripe tomatoes. 
  • Cucumbers – mini english cucumbers have a great flavor and great crunch. 
  • Red onion – thinly sliced to add crunch and color to this salad. 
  • Herbs – fresh herbs are what make this spring salad. We use a combination of fresh parsley, cilantro, and dill.
  • Dressing – a simple yet delightful combination of extra virgin olive oil, lemon juice, salt, and fresh black pepper. 

See the recipe card below for a complete list of ingredients and quantities.

The tomato cucumber onion salad ingredients.

Substitutions and Variations

  • Add protein: Bulk up this salad with slices of juicy grilled chicken
  • Add pasta: Add cooked pasta to turn this into a fresh pasta salad
  • Add other vegetables. You can easily add avocado, bell peppers, snap peas, or cauliflower to elevate the flavors or clean out your fridge.
  • Spicy. Add chili flakes to this salad just like in our spicy cucumber salad.

How to Make Vegetable Salad 

A salad bowl with the ingredients for tomato onion salad.
  1. Prepare salad. To a large salad bowl, add tomatoes, cucumbers, red onion, and fresh herbs. 
A bowl with the salad dressing ingredients.

2. Make dressing. In a separate small bowl, whisk together the dressing ingredients. Add the dressing to the salad bowl and toss.

Expert Tips: 

  • Summer salad. This is the best salad to make with in-season produce! Fresh tomatoes and cucumber are what truly take this salad to the next level. 
  • Get creative with the dressing. Level up this salad by creating a delicious dressing! Try our simple poppy seed dressing or a refreshing, zesty greek dressing
  • Level up your salad. Top the salad with feta cheese, just like in our loaded greek salad.

Serving Suggestions

A bowl with the tomato onion salad tossed lightly.

Store & Reheat 

  • Storage. Keep leftover salad in an airtight container in the refrigerator for up to 3 days. 
  • Freeze. We don’t recommend freezing this salad. 

More Salad Recipes

If you enjoyed this tomato cucumber salad recipe, be sure to try our other easy salad recipes; here are some of our favorites:

If you tried this cucumber tomato salad recipe or any other recipe on my website, please leave a star rating and let me know how it went in the comments below – we appreciate it!

Tomato Cucumber Onion Salad

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5 from 1 vote
The easiest tomato cucumber onion salad, making it a homemade side salad everyone will love. Loaded with fresh tomatoes, cucumbers and onion in a simple dressing, it can be on the table in 10 minutes.
Prep Time: 10 minutes
Total Time: 10 minutes
Servings: 4

Ingredients

  • 3 large ripe tomatoes diced
  • 3 mini cucumbers sliced
  • ½ medium red onion thinly sliced
  • 1 Tbsp fresh herbs parsley, cilantro, or dill

dressing –

  • 3 Tbsp olive oil
  • 1 Tbsp freshly squeezed lemon juice
  • 1 tsp salt or to taste
  • ¼ tsp black pepper or to taste

Instructions

  • In a large bowl, combine the tomatoes, cucumbers, onions, and fresh herbs.
  • In a separate bowl, whisk together the olive oil, lemon juice, salt, and pepper.
  • Pour the dressing over the salad and toss to combine.
  • Serve and enjoy, friends.

Notes

  • Use quality ingredients. This salad really shines when you use in-season tomatoes and cucumbers. The flavor is unmatched!
  • Bulk up your salad. Add pasta or chicken to this salad to make a complete meal. 
  • Prep in advance. Assemble all of the vegetables in the salad bowl and wait until serving to toss in the dressing. 

Nutrition

157kcal Calories11g Carbs3g Protein12g Fat2g Saturated Fat1g Polyunsaturated Fat8g Monounsaturated Fat592mg Sodium571mg Potassium3g Fiber6g Sugar932IU Vitamin A22mg Vitamin C52mg Calcium1mg Iron
Nutrition Facts
Tomato Cucumber Onion Salad
Amount Per Serving
Calories 157 Calories from Fat 108
% Daily Value*
Fat 12g18%
Saturated Fat 2g13%
Polyunsaturated Fat 1g
Monounsaturated Fat 8g
Sodium 592mg26%
Potassium 571mg16%
Carbohydrates 11g4%
Fiber 3g13%
Sugar 6g7%
Protein 3g6%
Vitamin A 932IU19%
Vitamin C 22mg27%
Calcium 52mg5%
Iron 1mg6%
* Percent Daily Values are based on a 2000 calorie diet.
(The nutrition information provided is an estimate and will vary based on cooking methods and brands of ingredients used.)