Name: Cucumber, Onion, and Tomato Salad
Prep time: 10 min
Total time: PT-497223H53M44S
Cuisine: American
Ingredients: 3 medium tomatoes, diced; 3 cucumbers, peeled and sliced; 1 onion, thinly sliced; ½ cup vinegar (white or apple cider); 1 tsp cracked black pepper; 2 tbsp sugar; 2 tsp salt; 1 cup water; ¼ cup olive oil

Jump to Recipe

When the summer sun is blazing and the thought of turning on the oven feels like a crime, a crisp bowl of Cucumber, Onion, and Tomato Salad swoops in to save the day. This fresh summer salad is cool, crunchy, and downright refreshing—the kind of dish that makes you want to sit on the porch with a tall glass of iced tea and let the world slow down a little.

What I love about this quick salad recipe is that it’s proof that simple ingredients can still create something magical. With just a few fresh veggies and a tangy vinegar dressing, you’ve got a dish that works as a healthy vegan side dish, a light lunch, or even as the star of a picnic spread. Bonus: it takes all of 10 minutes to make, leaving you more time to enjoy the sunshine instead of sweating in the kitchen.

Why You’ll Love This Cucumber, Onion, and Tomato Salad

It’s light, fresh, and packed with garden flavors.
Takes just 10 minutes from start to finish.
A perfect healthy vegan side dish for barbecues, potlucks, or weeknight dinners.

The vinegar dressing gives it a zippy, tangy kick.

Ingredients You’ll Need

3 medium tomatoes, diced
3 cucumbers, peeled and sliced
1 onion, thinly sliced
1/2 cup vinegar (white or apple cider)
1 tsp cracked black pepper
2 tbsp sugar
2 tsp salt
1 cup water
1/4 cup olive oil

Step-by-Step Directions

Dice tomatoes into bite-sized pieces, peel and slice cucumbers, and thinly slice onion. Add to a large salad bowl.
In a separate bowl or jar, whisk vinegar, pepper, sugar, salt, water, and olive oil until sugar and salt dissolve.

Pour dressing over the vegetables and toss gently until coated.
Cover and refrigerate for 15–20 minutes to let flavors mingle.

Serve chilled or at room temperature.

Tips for the Best Salad

Use the freshest vegetables you can get—farmer’s market produce makes this shine.
If raw onions feel too strong, soak the slices in cold water for 5 minutes before adding them.
Swap out the vinegar: apple cider vinegar for a fruity note, red wine vinegar for a richer flavor.

For a lighter twist, reduce the sugar or swap it with honey.
Add fresh herbs like dill, parsley, or basil for extra flavor.

A Little Story from My Kitchen

his salad always takes me back to my grandma’s backyard in July. She’d send us kids outside with a basket to pick tomatoes and cucumbers, and by the time we came in, she already had onions sliced and vinegar on the counter. It wasn’t fancy, but it was full of love—and somehow it always tasted better eaten under the shade of the big oak tree. Now, whenever I make it, I get that same nostalgic comfort, like summer in a bowl.

What to Serve with Cucumber, Onion, and Tomato Salad

This salad is versatile enough to go with just about anything. Try it alongside:

Grilled chicken or fish for a light, balanced dinner.
Burgers, hot dogs, or barbecue as a refreshing contrast.
A basket of crusty bread to soak up the tangy vinegar dressing.
Quinoa or couscous for a quick vegetarian meal.

And honestly? Sometimes I just eat a big bowl of it all by itself with a hunk of bread. Simple, satisfying, and perfect for summer.

How to Store Your Salad

Store leftovers in an airtight container in the refrigerator for up to 3 days.
The flavors deepen as it sits, but the cucumbers may soften slightly.
To keep it extra crisp, store the veggies and vinegar dressing separately and toss right before serving.

This salad does not freeze well, so enjoy it fresh.

FAQs About This Salad

Can I make this ahead of time?

Absolutely—just mix it up a few hours before serving. It gets even better as it chills.

Do I have to use sugar?

No, you can leave it out or swap with honey, maple syrup, or a sugar alternative.

Can I add other vegetables?

Yes! Bell peppers, radishes, or even avocado make great additions.

What kind of onion works best?

Red onions give a nice bite and color, but sweet onions work beautifully too.

Can I use balsamic vinegar?

You can, but it will change the flavor profile. Stick with lighter vinegars if you want a classic taste.

The Freshest Ending

There’s something beautifully simple about a bowl of Cucumber, Onion, and Tomato Salad—it’s crisp, tangy, and filled with flavors that taste like summer sunshine. Whether you’re making it for a barbecue, a light weekday dinner, or just to use up your garden bounty, this quick salad recipe will be one you’ll turn to again and again. Sometimes, the best dishes really are the simplest.

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