This salad has serious nostalgic energy—it’s the kind of dish your grandma probably kept in the fridge all summer long. It’s cool and tangy, with just enough sweetness to balance the vinegar. The cucumbers stay crisp, the onions mellow out, and the tomatoes get juicy and sweet. You can serve it right away or let it chill for a few hours to soak up all the flavor.
You only need one bowl, a handful of ingredients, and about 10 minutes of prep. And bonus: it keeps beautifully in the fridge for days.
Why You’ll Love This Recipe
Quick and easy – Just slice, mix, and marinate.
Super fresh and healthy – Naturally low in calories and full of hydrating veggies.
Budget-friendly – Made with ingredients you probably already have on hand.
Great for make-ahead – It gets better as it sits, making it ideal for meal prep.
Crowd-pleaser – Goes with everything from grilled meats to sandwiches and stews.
Prep Time and Servings
Prep Time: 10 minutes
Marinate Time: 1 hour (or longer for deeper flavor)
Servings: 6
Calories per serving: ~60
Carbs: 7g
Fat: 3g
Protein: 1g
Ingredients
- 2 medium cucumbers, thinly sliced (peeled or unpeeled)
- 2–3 medium tomatoes, cut into wedges or large chunks
- 1 small red onion, thinly sliced
- 1/4 cup white vinegar (or apple cider vinegar for a softer tang)
- 2 tablespoons olive oil
- 1 tablespoon sugar (or honey, optional)
- 1 teaspoon salt
- 1/4 teaspoon black pepper
- 1/2 teaspoon dried oregano (or use fresh herbs like dill, parsley, or basil)
- 1 clove garlic, minced (optional, for a punchier flavor)
Step-by-Step Instructions
1. Slice the vegetables
Use a sharp knife or mandoline to slice cucumbers and onions thinly. Cut the tomatoes into chunks or wedges—whatever you prefer.
2. Combine in a bowl
Add the sliced cucumbers, tomatoes, and onions to a large bowl. If you’re adding garlic, toss that in too.
3. Make the marinade
In a small bowl or measuring cup, whisk together the vinegar, olive oil, sugar (if using), salt, pepper, and oregano until combined.
4. Pour and toss
Pour the marinade over the vegetables and toss gently to coat everything evenly.
5. Chill and marinate
Cover the bowl and refrigerate for at least 1 hour. Stir occasionally to make sure all the veggies are evenly soaked. It gets better the longer it sits—overnight is perfect.
6. Serve
Serve cold or at room temperature, with a slotted spoon to drain excess liquid if needed. Garnish with fresh herbs if you’d like!
How to Serve
This salad is endlessly versatile! Try it:
- As a side for grilled chicken, steak, or fish
- On top of hummus with pita chips
- Mixed into a grain bowl or wrap
- Served alongside kabobs or shawarma
- With rice and beans for a fresh contrast
- As part of a mezze platter with olives, feta, and dips
Additional Tips
1. Use English or Persian cucumbers
These have thinner skin and fewer seeds, making them ideal for salads.
2. Want it extra crisp?
Soak the sliced cucumbers and onions in ice water for 10 minutes before draining and marinating.
3. Use ripe, but firm tomatoes
You want them juicy but not mushy. Cherry tomatoes work great too—just halve them.
4. Add-ins for extra flair
Crumbled feta, kalamata olives, or a sprinkle of chili flakes add extra dimension.
5. Balance the acid
Taste and adjust! Add a little more sugar or olive oil if the vinegar is too sharp.
Recipe Variations
Creamy Cucumber Tomato Salad
Add a few tablespoons of Greek yogurt or sour cream to the dressing for a creamy version.
Spicy Version
Add thinly sliced jalapeños or a pinch of crushed red pepper.
Balsamic Twist
Use balsamic vinegar and add a pinch of Italian seasoning instead of oregano.
Mediterranean Style
Top with crumbled feta, sliced olives, and chopped parsley or dill.
Middle Eastern-Inspired
Swap in lemon juice for the vinegar, add sumac or za’atar, and a pinch of cumin.
Storage
Refrigerator:
Store in an airtight container for up to 4 days. Stir gently before serving each time.
Freezer:
Not recommended—fresh veggies don’t freeze well once marinated.
Special Equipment
- Mandoline or sharp knife for slicing veggies evenly
- Large mixing bowl
- Lidded container for storing in the fridge
- Measuring cup or small whisk for the dressing
FAQ
Can I make this ahead of time?
Yes! This salad actually tastes better after a few hours of marinating.
Do I need to peel the cucumbers?
Not unless the skin is very thick or waxy. Thin-skinned cucumbers work well unpeeled.
Can I use different vinegar?
Absolutely! Apple cider, red wine, or even lemon juice will all work.
Is this recipe keto-friendly?
Yes—just skip the sugar or use a low-carb sweetener if needed.
Can I add protein?
Yes! Add chickpeas, grilled chicken, or canned tuna for a more complete meal.
Conclusion
This Marinated Cucumbers, Onions, and Tomatoes salad is everything a great side dish should be—fresh, flavorful, fast, and flexible. With its crisp veggies and tangy marinade, it adds brightness and balance to any meal. Keep a bowl in the fridge and you’ll always have a healthy, refreshing side ready to go.
If you try it, I’d love to hear how you served it! Tag me or drop a comment—let’s keep the fresh side dish inspiration flowing.
