Here's the perfect cucumber onion tomato salad recipe: Combine 2 diced cucumbers, 2 cups chopped tomatoes, and 1/2 thinly sliced red onion. Toss with 3 tbsp olive oil, 1 tbsp red wine vinegar, 1 tsp dried oregano, salt, and pepper. Chill for 30 minutes before serving. This refreshing salad serves 4 and takes just 15 minutes to prepare with common garden-fresh ingredients.
Craving a light, refreshing side dish that bursts with summer flavors? This cucumber onion tomato salad recipe delivers crisp vegetables balanced with a simple Mediterranean-inspired dressing. Perfect for backyard barbecues, picnics, or as a healthy weeknight accompaniment, this no-cook salad requires minimal effort but maximum flavor impact. In just 15 minutes of active preparation time, you'll have a vibrant dish that complements grilled meats, sandwiches, or stands beautifully on its own.
Why This Cucumber Tomato Onion Salad Works
The magic of this easy cucumber tomato onion salad recipe lies in its perfect flavor balance. Cucumbers provide cool crunch, tomatoes offer sweet juiciness, and red onions contribute a pleasant sharpness that mellows when combined. The dressing—just olive oil, vinegar, and herbs—enhances rather than overwhelms the natural flavors. Unlike watery, bland versions, this recipe includes our chef-tested technique for preventing sogginess while maximizing taste absorption.
Ingredient Selection Guide
Choosing quality produce makes all the difference in this fresh Mediterranean cucumber salad. Here's what to look for:
| Ingredient | Best Variety | Selection Tips |
|---|---|---|
| Cucumbers | English or Persian | Firm, dark green skin without yellow spots; avoid waxed varieties |
| Tomatoes | Vine-ripened Roma or Heirloom | Heavy for size, uniform color, slight give when gently squeezed |
| Onions | Red or Vidalia | Firm bulbs with dry, papery skin; avoid sprouting or soft spots |
Pro Preparation Techniques
Professional chefs use these methods to elevate simple vegetable salads:
Preventing Watery Salad
Salt your diced cucumbers and let them drain in a colander for 10 minutes before assembling. This draws out excess moisture that would otherwise dilute your dressing. Gently press with paper towels to remove remaining liquid—this simple step transforms your how to make cucumber tomato salad with red onion from soggy to spectacular.
Taming Onion Sharpness
Soak thinly sliced red onions in ice water for 15 minutes to reduce their bite while maintaining crisp texture. For our healthy tomato cucumber salad dressing, this creates a more balanced flavor profile that won't overpower the delicate cucumbers and tomatoes.
Flavor Variations and Customizations
This quick summer vegetable salad recipe adapts beautifully to different tastes and dietary needs:
- Mediterranean twist: Add 1/4 cup crumbled feta, 10 Kalamata olives, and 2 tbsp chopped fresh mint
- Protein boost: Mix in 1 cup chickpeas or white beans for a heartier meal
- Vegan option: Skip cheese additions and use maple syrup instead of honey in dressing
- Spicy version: Include 1/4 tsp red pepper flakes or diced jalapeño
When This Salad Shines (and When to Choose Something Else)
Understanding context boundaries helps you serve this dish at its best. This no-cook cucumber tomato salad excels during warm months when vegetables are at peak freshness. It pairs perfectly with grilled proteins but isn't ideal as a standalone meal in cooler weather. The salad maintains optimal texture for 24 hours refrigerated, making it excellent for meal prep—but avoid freezing, as the vegetables will become mushy. For winter gatherings, consider roasted vegetable alternatives instead.
Nutritional Benefits
According to USDA FoodData Central, one serving (1 cup) of this refreshing garden vegetable salad provides:
- 65 calories
- 3g dietary fiber (12% daily value)
- 15% of your daily vitamin C needs
- Significant lycopene from tomatoes
- Hydration from cucumber's 95% water content
The combination of fresh vegetables creates a nutrient-dense side dish that supports healthy digestion and provides antioxidant benefits without heavy calories.
Serving and Storage Tips
For best results with this easy cucumber tomato onion salad recipe, dress the salad 30 minutes before serving to allow flavors to meld while maintaining crisp texture. Serve chilled in a glass or ceramic bowl (metal can affect flavor). Leftovers keep well for 24 hours in an airtight container—though the tomatoes may release additional liquid over time. If making ahead, store dressing separately and combine just before serving.
Frequently Asked Questions
Can I make this salad ahead of time?
Yes, but for best texture, prepare ingredients separately and combine 30 minutes before serving. Store cut cucumbers in a paper towel-lined container to absorb excess moisture.
What's the best vinegar for this salad?
Red wine vinegar provides classic Mediterranean flavor, but apple cider vinegar works well for milder taste. Avoid balsamic as it will discolor the vegetables.
How do I prevent the salad from getting watery?
Salting cucumbers before assembly and draining excess liquid is crucial. Also, add dressing just before serving rather than in advance.
Can I use other onion varieties?
Yes—sweet onions like Vidalia work well for milder flavor, while white onions provide more bite. Red onions offer the best color contrast and balanced flavor for this recipe.








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