This easy Cucumber Salad recipe with onion, tomato, and tangy vinegar is a summertime classic. So simple, crisp, and utterly refreshing! (Vegan, gluten-free, oil-free option.)
This fresh cucumber salad recipe is a summertime staple! (But it's also great year-round thanks to hothouse cucumbers.)
Plus it's easy to assemble. We'll simply chop the veggies, pour over the dressing, then store it in the fridge to let flavors deliciously combine.
It's also a great take-along side dish for picnics, potlucks, and BBQs.
Ingredients for Cucumber Salad
For the salad portion you will toss together:
- Cucumber: Most often I use English cucumbers (also called hothouse) because they have more flavor and less seeds. But regular seedless garden cucumbers work well too.
- Onion: I thinly slice red onion or white onion. Either works great.
- Roma tomatoes: Be sure they are ripe and flavorful. Or you can use grape tomatoes or cherry tomatoes for a richer, sweeter flavor!
To make the dressing, you will whisk together:
- White wine vinegar: Or you can substitute red wine vinegar or apple cider vinegar. (Fresh lemon juice could also work, although I have not tested this version.)
- Olive oil: This is optional and you can omit it for an oil-free version if desired.
- Dried oregano: Be sure your pantry spices are fresh (not expired) for best flavor. You can also include fresh herbs like dill, parsley, basil, etc.
- Salt: Use as much or as little to your taste, especially if you are watching your sodium intake. But this helps to enhance the flavors.
Fresh herbs: Dill, parsley, or basil, etc. are great additions and enhance the freshness and flavor even more. (I highly recommend a tablespoon or two of fresh dill in addition to the dried oregano!)
Garlic: One clove of minced garlic added to the dressing will provide a nice zing of garlic flavor. (Or lightly sauté it first to help mellow the raw garlic.)
Make it spicy: For a spicier version, simply add a quarter teaspoon cayenne pepper (more or less) or crushed red pepper flakes to taste.
Add sweetness: Many classic cucumber salads often include sugar to sweeten and balance the flavors. So you can also stir in a touch of your preferred sugar or agave to the dressing if desired.
Tip: Be sure to find ripe, flavorful produce for this recipe because it can make all the difference!
For more inspiration, also browse all easy vegan salad recipes.
- 2 large English cucumbers (or seedless garden cucumbers)
- 1/2 small onion (red or white)
- 3 roma tomatoes (or grape/cherry tomatoes)
For the vinegar dressing:
- 3 Tbsp. white wine vinegar (or red wine vinegar, apple cider vinegar)
- 1/2 Tbsp. olive oil (optional, omit for oil-free)
- 1 tsp. dried oregano (and/or fresh herbs*)
- 1/8 tsp. salt
- Optional: 1 tablespoon fresh dill
- Make the dressing: Add all dressing ingredients to a small bowl and whisk to combine.
- Thinly slice cucumbers (peeled if desired) and thinly slice onion. Dice tomatoes, removing excess juice. Place in a large mixing bowl.
- Pour dressing over salad. Toss to combine. Adjust flavors as desired (more vinegar, salt, herbs).
- Enjoy immediately or refrigerate in a sealed container for an hour to let flavors further combine.
Nutrition Per Serving (Estimate)
Sodium: This is omitted as I cannot provide an accurate number. I encourage you to calculate your own to provide a much more precise reading based on the exact ingredients, brands, and amounts you're using.
If you are enjoying this easy cucumber onion salad with vinegar, also check out:
- Southwestern Chopped Salad with Creamy Cilantro Dressing
- Quinoa Avocado Spinach Power Salad
- BBQ Chickpea Chopped Salad
- Asian Style Chopped Salad with Sesame Vinaigrette