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Fresh Cucumber, Tomato & Onion Salad: A Crisp, Refreshing Side Dish

When you want something fresh, colorful, and incredibly easy to prepare, a Fresh Cucumber, Tomato & Onion Salad is hard to beat. Made with crisp cucumbers, juicy tomatoes, and thinly sliced onion, this simple salad brings together contrasting textures and bright flavors in every bite.

A light homemade dressing ties everything together without overpowering the vegetables. The result is a refreshing side dish that works beautifully alongside grilled meats, sandwiches, rice dishes, roasted vegetables, or even a simple lunch.

The best part is that this salad requires no complicated cooking techniques. With a few fresh ingredients, a sharp knife, and a bowl, you can have it ready in minutes.

Why You’ll Love This Salad

This cucumber, tomato, and onion salad is a wonderful choice when you want a dish that feels light and fresh.

Quick to prepare: Most of the work involves washing and chopping vegetables.
Fresh and colorful: Red tomatoes, green cucumbers, and purple or white onion make an attractive combination.
Simple ingredients: You can find everything you need at almost any grocery store.
Versatile: Serve it as a side dish, light snack, or addition to a larger meal.
Easy to customize: Herbs, cheese, spices, or other vegetables can easily be added.

Ingredients You’ll Need

For the Salad

2 large ripe tomatoes
2 medium cucumbers
½ medium red onion
2 tablespoons fresh parsley, finely chopped
A small handful of fresh cilantro, optional
Salt, to taste
Freshly ground black pepper, to taste

For the Dressing

3 tablespoons extra-virgin olive oil
2 tablespoons fresh lemon juice
1 tablespoon red wine vinegar
½ teaspoon honey or maple syrup, optional
1 small garlic clove, finely minced
½ teaspoon dried oregano
A pinch of salt
A pinch of freshly ground black pepper

The honey or maple syrup is completely optional. It adds a tiny touch of sweetness that can balance the acidity of the lemon and vinegar, especially when the tomatoes are not particularly sweet.

How to Make Fresh Cucumber, Tomato & Onion Salad

Step 1: Wash and Prepare the Vegetables

Begin by thoroughly washing the cucumbers and tomatoes under cool running water. Pat them dry with a clean kitchen towel.

There is no need to peel the cucumbers unless their skin is particularly thick or you simply prefer them peeled. The skin provides additional color and a pleasant crunch.

Remove the stem ends from the tomatoes and cucumbers before slicing.

Step 2: Cut the Cucumbers

Slice the cucumbers into rounds about ¼-inch thick.

For a slightly more elegant presentation, you can cut the cucumber into thin half-moons. Simply slice the cucumber lengthwise first and then cut it across into thin pieces.

Try to keep the pieces relatively similar in size so every forkful contains a good balance of ingredients.

Step 3: Chop the Tomatoes

Cut the tomatoes into bite-sized wedges or chunks.

If you’re using very juicy tomatoes, you can gently remove some of the seeds and excess liquid. This is not essential, but it can help prevent the salad from becoming watery if you plan to let it sit for more than a few minutes.

For the best flavor, choose tomatoes that are ripe but still firm enough to hold their shape when cut.

Step 4: Slice the Onion

Peel the onion and cut it into very thin slices.

Red onion is particularly good in this salad because its slightly sharp flavor contrasts nicely with the mild cucumber and sweet tomato.

If you find raw onion too strong, place the slices in a bowl of cold water for about 5–10 minutes. Drain and pat them dry before adding them to the salad. This simple step mellows the onion while preserving its crunch.

Step 5: Prepare the Fresh Herbs

Finely chop the parsley and, if using, the cilantro.

Fresh herbs make a noticeable difference in a simple salad like this. Parsley provides a clean, fresh flavor, while cilantro gives the salad a more distinctive herbal character.

You can use one or the other depending on your preference.

Step 6: Make the Dressing

In a small bowl or jar, combine the olive oil, lemon juice, red wine vinegar, minced garlic, oregano, salt, and black pepper.

Add the honey or maple syrup if you want a slightly sweeter dressing.

Whisk everything together until the oil and acidic ingredients are well combined.

Taste the dressing before adding it to the vegetables. If it tastes too sharp, add a little more olive oil or a tiny amount of honey. If it tastes flat, add another small squeeze of lemon juice or a pinch of salt.