Cucumber Tomato Avocado Salad

Our family’s favorite classic cucumber and tomato salad just got better with the addition of creamy avocado, a light and flavorful lemon dressing, and fresh cilantro. This Cucumber Tomato Avocado Salad takes just 15 minutes to make, and there’s no cooking required. It’s an easy, excellent, crowd-pleasing salad.

Cucumber Tomato Avocado Salad in white bowl

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Helpful Reader Review

“I’ve been this for years in the summer! It is soooo good! The best side salad ever.” – Gail ★★★★★

Cucumber Tomato Avocado Salad Video

Why You’ll Love This Salad

This is the salad I make all summer long and bring most often to my parents’ house for Sunday lunch. I never seem to get tired of it, especially with garden-grown cucumbers and tomatoes. The simple lemon dressing makes it taste fresh and bright year-round, even when tomatoes aren’t at their summer best.

It’s perfect with grilled meats, seafood, or a simple weeknight dinner, and it always disappears fast. It’s also naturally gluten-free, dairy-free, vegetarian, and vegan, so it works for a wide range of diets, meals, and gatherings.

Cucumber tomato Avocado salad garnished with cilantro served in a white bowl

Cucumber Tomato Avocado Salad Ingredients

This easy salad is all about fresh ingredients, so use the best tomatoes and avocados you can find. Garden cucumbers and tomatoes make it extra special and give this salad the best summer flavor.

  • Tomatoes – Roma tomatoes work well because they are firm and not overly juicy. Cherry or grape tomatoes are also great and hold their shape nicely.
  • Cucumber – I love English cucumbers or Persian cucumbers. They are crisp, mild, and don’t need to be peeled.
  • Avocados – Choose ripe but firm avocados so they hold their shape when tossed. Avoid overripe avocados, which can get mushy.
  • Red onion – Slice it thinly so it blends into the salad. The lemon juice helps mellow the onion as it sits, but if your onion is extra strong, soak the slices in cold water for 10 minutes, then drain well.
  • Cilantro – We love the fresh flavor here, but fresh dill is a great substitute.
  • Lemon juice and olive oil – This simple dressing is light, fresh, and lets the vegetables shine. You can substitute fresh lime juice.
Cucumber Tomato Avocado Salad ingredients with fresh veggies and dressing

How to Make Cucumber Tomato Avocado Salad

  • Prep the veggies – Chop the tomatoes. If your tomatoes are extra juicy, you can seed them first, but I usually don’t bother. Slice the cucumber and red onion, dice the avocados into bite-sized pieces, and chop the cilantro. Add everything to a large salad bowl.
Chopped cucumbers, tomatoes and avocados on a cutting board.
  1. Dress the salad – Drizzle with olive oil and fresh lemon juice, then gently toss to combine.
Cucumber tomato and avocado salad chopped in sections in a white salad bowl
  1. Season and Serve – Just before serving, add salt and pepper to taste and toss gently again. This helps keep the salad from getting watery too quickly.

Tips for the Best Avocado Salad

  • Use ripe but firm avocados – Soft avocados can turn mushy when tossed. Dice them into bite-sized pieces, but don’t cut them too small or they can fall apart.
  • Dice the avocado last – This keeps it fresher and helps prevent browning.
  • Toss gently – Use a large spoon or spatula to fold the salad instead of stirring hard, which can crush the avocados and make the salad mushy.
  • Salt just before serving – Salt pulls moisture from cucumbers and tomatoes, so this keeps the salad crisp and fresh.

Serve With

My husband and I ate this entire batch of cucumber tomato salad with avocado in one sitting, paired with Roasted Potatoes and Grilled Shrimp Skewers. I shoveled most of the salad into my mouth before I remembered the shrimp and potatoes on my plate; mmming and smiling all the way through. We are both smitten. It pairs with just about anything:

Cucumber Tomato Avocado Salad

4.93 from 500 votes
Cucumber Tomato Salad Recipe served in a white salad bowl
Our classic cucumber and tomato salad just got better with the addition of avocado, a lemon dressing and fresh cilantro.
Prep Time: 15 minutes
Total Time: 15 minutes

Ingredients 

Servings: 4 (as a side salad)
  • 1 lb Roma tomatoes, chopped
  • 1 English cucumber, Persian, or garden cucumbers, sliced
  • 1/2 medium red onion, thinly sliced
  • 2 avocados, diced
  • 2 Tbsp extra virgin olive oil , or sunflower oil
  • 2 Tbsp fresh lemon juice, (from 1 medium lemon), or lime juice
  • 1/4 cup cilantro*, chopped
  • 1 tsp sea salt, or 3/4 tsp table salt
  • 1/8 tsp black pepper

Instructions

  • Prep Veggies – Place chopped tomatoes, sliced cucumber, sliced red onion, diced avocado, and chopped cilantro into a large salad bowl.
  • Add Dressing – Drizzle with 2 Tbsp olive oil and 2 Tbsp lemon juice. Toss gently to combine.
  • Season and Serve – Just before serving, toss with 1 tsp sea salt and 1/8 tsp black pepper, or season to taste.

Notes

*Note: if you don’t like cilantro, you can substitute it with 2 Tbsp fresh dill or chives. 
Make-Ahead: 
This salad is best fresh, but you can prep part of it ahead. Chop the tomatoes, slice the cucumber and onion, and chop the cilantro up to 1 day ahead. Cover and refrigerate. For the best texture, add the avocado, lemon juice, oil, salt, and pepper just before serving.
How to Store Cucumber Tomato Avocado Salad: 
If you have leftovers, cover and refrigerate for up to 1 day. The avocado may darken a little, and the tomatoes and cucumber will release some juice, but it will still taste good.

Nutrition Per Serving

261kcal Calories17g Carbs3g Protein22g Fat3g Saturated Fat596mg Sodium886mg Potassium8g Fiber5g Sugar1240IU Vitamin A31.8mg Vitamin C39mg Calcium1.1mg Iron
Nutrition Facts
Cucumber Tomato Avocado Salad
Amount per Serving
Calories
261
% Daily Value*
Fat
 
22
g
34
%
Saturated Fat
 
3
g
19
%
Sodium
 
596
mg
26
%
Potassium
 
886
mg
25
%
Carbohydrates
 
17
g
6
%
Fiber
 
8
g
33
%
Sugar
 
5
g
6
%
Protein
 
3
g
6
%
Vitamin A
 
1240
IU
25
%
Vitamin C
 
31.8
mg
39
%
Calcium
 
39
mg
4
%
Iron
 
1.1
mg
6
%
* Percent Daily Values are based on a 2000 calorie diet.
Course: Salad, Side Dish
Cuisine: American
Keyword: Cucumber Tomato Avocado Salad
Skill Level: Easy
Cost to Make: $
Calories: 261
Natasha's Kitchen Cookbook

More Avocado Salads

If you love adding avocado to your salads, you’ll love this collection of avocado salads. We can all agree that avocados make salads better!

4.93 from 500 votes (144 ratings without comment)

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Comments

  • Carol Sher
    June 22, 2026

    I want to eat this salad all the time it is just that good.
    Thank you for your wonderful inspiring recipes.

    Reply

    • Natasha's Kitchen
      June 23, 2026

      It really is the perfect fresh salad. Thank you for the wonderful feedback, Carol

      Reply

  • Elizabeth Banda
    June 22, 2026

    Very refreshing home made salads and it’s healthy too, than macaroni and potato salads.
    I wouldn’t mind having this salads everyday.

    Reply

    • Natasha's Kitchen
      June 22, 2026

      It really is so fresh and crisp. Thank you for the lovely feedback, Elizabeth. I am happy to hear it is a favorite for you.

      Reply

  • Andrew
    June 13, 2026

    Very tasty, better with a piece of bread and washed down with a beer in the summer when it’s so hot!

    Reply

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