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Cucumber Tomato Avocado Salad

EVERYDAY TABLE  ·  Nov 6, 2026
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There are some salads I have made dozens of times over the past ten years, and this Cucumber Tomato Avocado Salad is one I keep coming back to every single summer. I remember the first time Aunt Anne brought a big bowl of it to a backyard gathering — the colors alone made everyone stop and stare. Ripe tomatoes, cool cucumber, creamy avocado, all tossed in a bright lemon dressing with fresh cilantro threading through every bite. Since then, I have made it my own, and I genuinely reach for it whenever I need something wholesome and beautiful without any real effort. If you love fresh, no-cook sides, my cucumber tomato feta salad is another variation worth trying, and this chickpea feta avocado salad is a heartier option on the same flavor wavelength. I hope this becomes your go-to summer bowl the way it has become mine.

You Might Also Love

If this fresh, vibrant salad is calling your name, you will love these other easy, no-fuss recipes from my kitchen.

  • Cucumber Tomato Feta Salad — crisp, salty, and ready in 10 minutes flat.
  • Marinated Cucumber Onion And Tomato Salad — tangy and deeply flavorful from a quick marinade.
  • Chickpea Feta Avocado Salad — protein-packed, creamy, and satisfying enough for lunch.
  • Tomato Garlic Salad — bold, garlicky, and perfect alongside grilled chicken or fish.

Why You’ll Love This Recipe

  • Bright, layered flavor in every bite. The acidity of Roma tomatoes, the cool crunch of English cucumber, and the buttery richness of ripe avocado create a flavor contrast that keeps you reaching back in for more.
  • No cooking required. This is a pure assembly salad — chop, toss, and serve. It is one of the most rewarding no-cook recipes I know.
  • Fresh lemon dressing ties it all together. A squeeze of real lemon juice lifts every ingredient and keeps the avocado vibrant without any heaviness.
  • Crowd-pleasing and versatile. It works as a side dish, a light lunch, a cookout staple, or a meal-prep component for weekday grain bowls.
  • Naturally wholesome. Packed with healthy fats, fiber, and vitamins — and it happens to be vegan, gluten-free, and dairy-free without any effort at all.

Ingredient Notes

  • Roma tomatoes — Firm, low-moisture tomatoes that hold their shape and won’t water down the salad.
  • English cucumber — Thin-skinned and virtually seedless; no peeling or scooping needed.
  • Red onion — Sliced thin for mild, pleasant bite without overpowering the fresh vegetables.
  • Avocados — Use ripe but still firm fruit so the cubes hold their shape when tossed.
  • Extra virgin olive oil — A good-quality oil adds richness and rounds out the lemon’s acidity beautifully.
  • Fresh lemon juice — Freshly squeezed only; bottled juice flattens the bright, clean flavor noticeably.
  • Cilantro — Chopped fresh for herbal lift; flat-leaf parsley works as a swap if needed.
  • Sea salt — Fine sea salt seasons evenly; table salt works slightly less — use ¾ tsp if substituting.
  • Black pepper — A small amount adds subtle warmth without competing with the lemon dressing.
Cucumber Tomato Avocado Salad (2)

How to Make Cucumber Tomato Avocado Salad?

  • Make the dressing first. Whisk together olive oil, fresh lemon juice, sea salt, and black pepper in a small bowl until fully combined. Set aside.
  • Prep the vegetables. Dice Roma tomatoes into bite-sized chunks, halve and slice the cucumber, and thinly slice the red onion.
  • Dice the avocado last. Halve, pit, and cube the avocados right before assembling to minimize browning; transfer immediately to a large wide bowl.
  • Combine all ingredients. Add tomatoes, cucumber, onion, and chopped cilantro into the bowl with the avocado.
  • Toss gently. Pour the prepared dressing over the salad and fold carefully with a large spoon, turning rather than stirring, to keep avocado cubes intact.
  • Taste and adjust. Add a pinch more salt or an extra squeeze of lemon if the dressing needs brightening.
  • Serve immediately. This salad is best enjoyed fresh — the avocado stays vibrant and the vegetables keep their satisfying crunch.
Cucumber Tomato Avocado Salad (3)

Emily’s Expert Tips

  • Cut avocado last. Avocado oxidizes quickly, so dice it right before tossing and coat it in the lemon dressing immediately — this keeps it green and gorgeous for serving. The lemon juice acts as a natural preservative, which is why this recipe skips any other anti-browning tricks.
  • Slice the red onion paper thin. A thick slice of raw red onion can overpower everything else in the bowl. I use a sharp knife or a mandoline set to the thinnest setting — it mellows the onion’s bite and lets the tomato and avocado shine. If you want to soften the onion flavor even further, soak the slices in cold water for five minutes, then pat dry before adding.
  • Use a wide, shallow bowl for tossing. A deep bowl makes it harder to fold without breaking the avocado. A wide bowl gives you room to gently turn the ingredients rather than stir — it keeps every cube intact and the salad looking beautiful all the way to the table.

Storage Tips

  • Refrigerate leftovers in an airtight container for up to one day; avocado softens after that.
  • Press plastic wrap directly onto the salad surface to slow browning before sealing the container.
  • Do not freeze — cucumber and avocado break down entirely and become watery.
  • Make-ahead tip: Prep tomatoes, cucumber, and onion up to 24 hours ahead; add avocado and dressing just before serving.

Variations & Substitutions

  • No cilantro? Swap with fresh flat-leaf parsley for a milder herbal note. Try it in this cucumber dill salad style for a completely different profile.
  • Add protein: Toss in a can of drained chickpeas or serve alongside grilled shrimp for a full meal.
  • Feta upgrade: Crumble 2 oz of feta over the top for a salty, creamy variation — similar to my cucumber feta salad .
  • Swap the lemon: Fresh lime juice works beautifully here and gives the salad a slightly more tropical edge.
  • Add crunch: A handful of toasted pepitas or sunflower seeds sprinkled on top adds satisfying texture contrast.
  • Make it spicy: Add a pinch of red pepper flakes or a thinly sliced jalapeño for a gentle kick.
Cucumber Tomato Avocado Salad (4)

What to Serve With Cucumber Tomato Avocado Salad?

  • Grilled chicken or fish — The bright lemon dressing pairs perfectly with anything off the grill.
  • Warm pita or flatbread — Great for scooping; turns the salad into a light, satisfying lunch.
  • Rice or quinoa bowls — Spoon it over grains for a nourishing, wholesome weekday bowl.
  • Marinated cucumber onion tomato salad — Serve both salads at a cookout spread for a fresh vegetable pairing.
  • Tacos or burritos — Acts as a vibrant, cooling side to spiced meat fillings.

Frequently Asked Questions

Can I make this salad ahead of time? Prep the vegetables a day ahead, but add avocado and dressing right before serving.

How do I keep the avocado from browning? Coat it in lemon juice immediately and press plastic wrap directly onto the surface.

Can I use regular cucumbers instead of English? Yes — peel them and scoop out the seeds to reduce excess moisture.

Is this salad vegan and gluten-free? Yes, naturally — no swaps needed.

What can I use instead of cilantro? Fresh flat-leaf parsley or fresh basil both work well here.

How long does this salad keep? Best eaten same-day; leftovers last up to one day refrigerated.

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THE RECIPE

Cucumber Tomato Avocado Salad

Prep15 min Total time15 min Yield6, 6 servings

Ingredients

Instructions

  1. Whisk together olive oil, fresh lemon juice, sea salt, and black pepper in a small bowl until fully combined. Set aside.

  2. Dice Roma tomatoes into bite-sized chunks, halve and slice the cucumber, and thinly slice the red onion.

  3. Halve, pit, and cube the avocados right before assembling; transfer immediately to a large wide bowl.

  4. Add tomatoes, cucumber, onion, and chopped cilantro into the bowl with the avocado.

  5. Pour the prepared dressing over the salad and fold gently with a large spoon, turning rather than stirring, to keep avocado cubes intact.

  6. Taste and adjust seasoning — add a pinch more salt or an extra squeeze of lemon if needed.

  7. Serve immediately for best flavor and texture.

Notes

Always dice the avocado last and coat it in the lemon dressing immediately to prevent browning.

Soak thinly sliced red onion in cold water for 5 minutes, then pat dry, to mellow its raw bite.

Swap cilantro for fresh flat-leaf parsley if preferred; fresh lime juice can replace lemon for a tropical twist.

Refrigerate leftovers in an airtight container with plastic wrap pressed directly onto the surface for up to 1 day.

To make ahead, prep tomatoes, cucumber, and onion up to 24 hours in advance — add avocado and dressing just before serving.

Source: www.kitchenmomy.com · Original recipe source.