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    Home » Salads

    Cucumber Tomato Red Onion Salad

    Published: Jul 13, 2020 · Modified: Mar 20, 2025 by Sula · This post may contain affiliate links · 50 Comments

    Jump to Recipe Jump to Video

    ‘Tis the season! Salad season, that is. Ring in the summer with marvelous fresh fruits and vegetables. For me, cucumbers and tomatoes are tops. Salads are needed for this in-season produce!!!

    This salad takes inspiration from two others on this site. One is my Greek Cucumber Salad, with its main ingredients of cucumbers, tomatoes, and red onion. And the balsamic vinaigrette dressing is reminiscent of a Caprese salad. Taking these favorite tastes and making a new salad is an easy button for sure. That’s what summer is all about!

    ba;samic cucumber tomato salad in a serving bowl with 2 serving spoons
    Jump to:
    • Easy Cucumber Tomato Salad Ingredients
    • How to Make Cucumber Tomato Salad
    • Cucumber Onion and Tomato Salad Recipe Variations
    • 💭Did you know?
    • More Favorites from Ovenspiration
    • 📖 Recipe

    Easy Cucumber Tomato Salad Ingredients

    It’s a pretty simple ingredient list, and experimenting with different combinations, etc. is easy,  as I describe below.

    • Cucumber (English)
    • Grape Tomatoes
    • Red onion
    • Avocado

    Easy Dressing for Cucumber and Tomato Salad

    You honestly only need 2 ingredients to make this dressing, plus salt and pepper. Whisk them together and toss with your salad!

    • Balsamic vinegar
    • Olive oil
    • Salt + pepper

    How to Make Cucumber Tomato Salad

    I like to mix this salad before I start the rest of the meal, waiting only to add the avocado at the end. It does great just hangin’ out in the fridge for a few hours.

    Start by cutting the cucumber into chunks, halving the grape tomatoes and slicing the onion. Whisk the vinegar and oil together and season with salt and pepper.

    cucumbers tomatoes and onion in a bowl
    Place cucumbers, tomatoes and onions in a bowl
    bowl of veggies with balsamic dressing nearby
    Mix up the balsamic dressing

    Pour this over the veggies and toss to combine. Refrigerate while you prepare the rest of the meal.

    Would you like to save this recipe?

    I'll email this post to you, so you can easily come back to it later!

    beginning to pour dressing on the veggies
    Pour the dressing into the bowl
    veggies with dressing mixed up
    Mix well and refrigerate

    Just before you are ready to serve, cut up the avocado and add to the salad. Toss gently, and serve.

    chunks of avocado added to the bowl
    Just before serving, add avocado
    balsamic cucumber toamto salad all mixed
    Mix and serve

    This salad goes perfectly with all your grilled summer delights!

    pin for balsamic cucumber tomato salad

    Cucumber Onion and Tomato Salad Recipe Variations

    • Cucumber: I love English cucumbers because of their thin skin. It means I don’t have to peel!! But feel free to use other cucumber varieties if you prefer.
    • Tomato: I always default to grape tomatoes because they have a little extra sweetness in every bite. But cherry tomatoes are a great substitute. You could even chunk up a Roma or a slicing tomato. They are the best when in season!
    • Red onion: In the world of onions, the red variety is described as “sweet.” That always feels wrong to me when describing an onion. You can substitute with a white or yellow onion if desired. Just be aware that other onions can impart an extremely strong taste and could potentially overwhelm the other flavors in this salad.
    • Avocado: I love the creamy texture the avocado adds to this salad. In addition to providing healthy fats, the avocado helps give a feeling of satiety, or fullness, from eating this salad. However, if you prefer to use cheese, some fresh mozzarella or feta would work well.
    • Dressing: If you have a favorite way to make a balsamic vinaigrette dressing, give that a try for this salad. For even more convenience, bottled balsamic vinaigrette dressing works great. #nojudging #stillcountsashomemade

    💭Did you know?

    You probably know that tomatoes are actually a fruit. But did you realize that that same is true of cucumbers? Because a cucumber grows from the flower part of a plant, it is botanically considered a fruit. Which makes it just another in a long list of veggies that are actually fruits. We probably need a whole new classification system for these. Fregetables, maybe?

    More summer salad recipes for you to try:

    • Grape Tomato Mozzarella Salad
    • Corn Tomato Avocado Salad
    • Greek Cucumber Salad
    • Chickpea, Carrot and Arugula Salad

    More Favorites from Ovenspiration

    • Homemade Sweet and Sour Mix
    • Taco Dip Recipe with Ground Beef
    • Sweet Macaroni Salad Recipe
    • Strawberry Filling
    • Strawberry Yogurt Muffins
    • Texas Roadhouse Green Beans Recipe
    • Sub Rolls
    • Rosemary Chicken Breast
    • Brownie Cups

    📖 Recipe

    Would you like to save this recipe?

    I'll email this post to you, so you can easily come back to it later!

    balsamic cucumber tomato salad in a serving bowl
    5 from 117 votes
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    Cucumber Tomato Salad (Old Fashioned Cucumbers, Tomatoes and Onions in Vinegar)

    An easy salad with fresh produce - a perfect summer side!
    Prep Time10 minutes mins
    Total Time10 minutes mins
    Course: Salad
    Cuisine: American
    Servings: 4
    Calories: 179kcal
    Author: Sula

    Ingredients

    • 1 English cucumber
    • 10 oz grape tomatoes
    • ½ red onion medium
    • 2 Tablespoons balsamic vinegar
    • 2 Tablespoons olive oil extra-virgin
    • Salt and pepper – to taste
    • 1 avocado large

    Instructions

    • Chop the cucumber into chunks, halve the tomatoes, and slice the onion. Add all to a medium bowl.
    • In a cup or small bowl, whisk together the olive oil and balsamic vinegar. Add salt and pepper and whisk again.
    • Add dressing to the bowl and toss gently to distribute. Refrigerate until ready to serve.
    • Just before serving, cut the avocado into cubes and add to the bowl. Toss gently.

    Video

    Nutrition

    Calories: 179kcal | Carbohydrates: 12g | Protein: 2g | Fat: 15g | Saturated Fat: 2g | Sodium: 11mg | Potassium: 551mg | Fiber: 5g | Sugar: 5g | Vitamin A: 742IU | Vitamin C: 18mg | Calcium: 28mg | Iron: 1mg

    Nutrition values are estimates only, using online calculators. Please verify using your own data.

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    Reader Interactions

    Comments

    1. Mike

      April 22, 2024 at 2:19 pm

      Would fresh dill go well on this?

      Reply
      • Sula

        April 22, 2024 at 6:27 pm

        It's certainly worth a try! Go easy at first and then add to taste. 🙂

        Reply
    2. Mihaela | https://theworldisanoyster.com/

      May 31, 2021 at 4:04 am

      5 stars
      I've just put avocado on my shopping list. In summer, I could survive exclusively on salads, and I'm happy to try any combination. SO glad I found this simple but filling and cooling recipe, too:))

      Reply
      • Sula

        May 31, 2021 at 6:47 am

        I'm the same! Can never have too many salads, especially in summer!

        Reply
    3. Gabriela Herrera

      May 30, 2021 at 7:15 am

      5 stars
      I love the combination of cucumber with the creaminess of avocado. This dish is sure to keep me full for an entire day.

      Reply
      • Sula

        May 30, 2021 at 1:28 pm

        It's definitely a winning combo!

        Reply
    4. Nora

      May 29, 2021 at 2:55 pm

      5 stars
      What a lovely, fresh salad! Perfect for summer! I love the addition of avocado!

      Reply
      • Sula

        May 29, 2021 at 7:03 pm

        The avocado really provides a nice creamy touch!

        Reply
    « Older Comments
    5 from 117 votes (93 ratings without comment)

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