Cucumber Tomato Avocado Salad

By Amy January 1, 2026

cucumber tomato avocado salad with red onion in white bowl
Table of Contents

Cucumber tomato avocado salad was one of the first dishes I made when I wanted something bright, clean, and satisfying without turning on the oven. I still remember standing in my tiny Denver kitchen, tomatoes on the counter, avocado in hand, and a feeling of excitement knowing it could all come together in just one bowl. It reminded me of summers at my grandma’s house, where tomatoes were picked fresh and served at every meal. Now, this salad is one I return to again and again. It’s simple, refreshing, and perfect whether I’m cooking for one or feeding a crowd.

Fresh, Fast, and Full of Goodness

The beauty of ripe ingredients

A great cucumber tomato avocado salad starts with the basics: juicy Roma tomatoes, crisp cucumber, creamy avocado, and a splash of lemon juice. When everything is fresh, you don’t need much else. A little olive oil, sliced red onion, and chopped cilantro are enough to tie the whole thing together. The texture is the real star here with cool crunch paired with soft creaminess in every bite.

cucumber tomato avocado salad with red onion and mixed cherry tomatoes in white bowl

If you’re drawn to clean, garden-fresh flavors, you’ll likely enjoy this Marinated Tomatoes recipe too. Like this salad, it highlights simplicity and brings vegetables to life with just a few ingredients.

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cucumber tomato avocado salad with red onion in white bowl

Cucumber Tomato Avocado Salad


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  • Author: Amy
  • Total Time: 10 minutes
  • Yield: 4 servings 1x
  • Diet: Vegan

Description

A fresh and easy cucumber tomato avocado salad tossed with lemon juice, olive oil, and herbs. Bright, quick, and full of flavor.


Ingredients

Scale

1 lb Roma tomatoes

1 English cucumber

1/2 medium red onion, sliced

2 avocados, diced

2 Tbsp extra virgin olive oil

2 Tbsp fresh lemon juice (from 1 medium lemon)

1/4 cup cilantro, chopped

1 tsp sea salt or 3/4 tsp table salt

1/8 tsp black pepper


Instructions

1. Place chopped tomatoes, sliced cucumber, sliced red onion, diced avocado, and chopped cilantro into a large salad bowl.

2. Drizzle with 2 Tbsp olive oil and 2 Tbsp lemon juice. Toss gently to combine.

3. Just before serving, toss with 1 tsp sea salt and 1/8 tsp black pepper.

Notes

If you aren’t keen on cilantro, fresh dill is a good substitute.

  • Prep Time: 10 minutes
  • Cook Time: 0 minutes
  • Category: Salads
  • Method: No-cook
  • Cuisine: American

Nutrition

  • Serving Size: 1 bowl
  • Calories: 210
  • Sugar: 3g
  • Sodium: 350mg
  • Fat: 18g
  • Saturated Fat: 3g
  • Unsaturated Fat: 14g
  • Trans Fat: 0g
  • Carbohydrates: 12g
  • Fiber: 5g
  • Protein: 2g
  • Cholesterol: 0mg

Why it works anytime

Whether it’s a busy weeknight or you’re hosting dinner, this dish fits the mood. It comes together in under 15 minutes and pairs with grilled chicken, sandwiches, or even a spoon right out of the bowl. There’s no mayo, no cheese, and no fuss. The lemon keeps the avocado from browning too quickly and adds just the right brightness. Plus, it’s naturally gluten-free and vegan, which makes it an easy choice for almost any table.

Customizations That Make It Yours

Ingredient swaps that still shine

Don’t like cilantro? No problem. Use fresh dill or parsley. Want a sharper onion bite? Try shallots. You can also switch lemon juice for lime or a splash of red wine vinegar. This cucumber tomato avocado salad handles substitutions well, which makes it a flexible base recipe for your own spin.

For those who like a bit more bite or richness, add feta cheese, kalamata olives, or even chickpeas. The beauty here is that you don’t lose the freshness even when you bulk it up.

Make it heartier

This salad can become a full meal with simple additions. Grilled shrimp, leftover rotisserie chicken, or canned tuna turn it into a protein-packed lunch. You can even layer it over quinoa for a grain bowl approach. Looking for more salads that blend creamy and crisp textures? You might enjoy the Cucumber Ranch Crack Salad with its cool crunch and crowd-pleasing appeal.

The creamy avocado balances sharper flavors and gives you a satisfying bite without making the salad heavy. The key is keeping the balance between the ingredients with nothing overpowering, just clean, bright flavor in every forkful.

Smart Prep Tips for Freshness

How to prep in advance

If you’re planning to make this salad ahead, prep the veggies first but leave the avocado out until the last minute. Slice the tomatoes, cucumber, and onion, and toss them with herbs and oil. Store that mix in an airtight container in the fridge.

Just before serving, dice your avocado and mix it with the lemon juice. This prevents browning and keeps the texture smooth and soft rather than mushy.

How to store leftovers

This cucumber tomato avocado salad is best eaten the same day, but if you have leftovers, press plastic wrap directly onto the surface before sealing the container. This helps prevent oxidation. The next day, the flavors deepen slightly, but the texture may soften. That’s fine if you’re topping it on toast or scooping with chips.

If you’re cooking for two or meal prepping, consider cutting the recipe in half. That way, you won’t waste any produce and still get to enjoy every bite at its best.

Smart Prep Tips for Freshness

How to prep in advance

If you’re planning to make this salad ahead, prep the veggies first but leave the avocado out until the last minute. Slice the tomatoes, cucumber, and onion, and toss them with herbs and oil. Store that mix in an airtight container in the fridge.

Just before serving, dice your avocado and mix it with the lemon juice. This prevents browning and keeps the texture smooth and soft rather than mushy.

How to store leftovers

This cucumber tomato avocado salad is best eaten the same day, but if you have leftovers, press plastic wrap directly onto the surface before sealing the container. This helps prevent oxidation. The next day, the flavors deepen slightly, but the texture may soften. That’s fine if you’re topping it on toast or scooping with chips.

If you’re cooking for two or meal prepping, consider cutting the recipe in half. That way, you won’t waste any produce and still get to enjoy every bite at its best.

Why You’ll Keep Coming Back to This Salad

It’s built for every season

In summer, this salad shines with peak produce. But in winter, when fresh veggies are limited, it still works with grocery store staples. English cucumbers are available year-round, and Roma tomatoes are consistent and flavorful enough to make this recipe work even off-season.

With just a handful of pantry and fridge items, you’ll have something colorful, balanced, and satisfying without ever needing to turn on the stove.

It hits all the marks

Quick? Yes. Healthy? Naturally. Customizable? Always. Whether you’re eating lighter, following a plant-based routine, or just want something that tastes clean, this salad delivers. It’s the kind of dish that becomes part of your regular rotation. And once you make it once, you won’t need a recipe to do it again.

FAQs

How do I keep avocado from turning brown in the salad?

Toss it in lemon juice before mixing it in. This slows oxidation and keeps it looking fresh.

Can I use different herbs besides cilantro?

Yes, dill or parsley both work well, depending on your preference.

Is this salad good for meal prep?

Yes, but add the avocado just before serving. Keep other veggies and dressing stored separately for best texture.

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