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Overhead shot of a bowl of tomato cucumber red onion salad
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5 from 2 votes

Tomato Cucumber Onion Salad

This Tomato Cucumber Onion Salad is an easy side dish that highlights the red, juicy tomatoes and the crisp, cool cucumbers of summer!
Course Salad
Cuisine American, Italian, Mediterranean
Prep Time 10 minutes
Cook Time 0 minutes
Resting Time 30 minutes
Total Time 40 minutes
Servings 6 people
Calories 194kcal
Author Blair


  • 4 medium ripe tomatoes, cored, seeded, and sliced into wedges
  • 2 cucumbers, peeled and sliced into half-circles
  • 1 small red onion, thinly sliced
  • 3 tablespoons snipped fresh basil
  • ½ cup extra virgin olive oil
  • 2 tablespoons red wine vinegar or apple cider vinegar
  • Kosher salt and black pepper, to taste


  • In a large bowl, combine tomatoes, cucumbers, onion and basil.
  • In a separate bowl or jar, whisk or shake together olive oil and vinegar. Pour over vegetables and toss to coat. Season with salt and pepper, to taste.
  • Allow the salad to marinate for about 30 minutes – 1 hour at room temperature or in the fridge (if you prefer a cold salad).


Serving: 1/6 of the salad | Calories: 194kcal | Carbohydrates: 7g | Protein: 2g | Fat: 18g | Saturated Fat: 3g | Sodium: 8mg | Potassium: 357mg | Fiber: 2g | Sugar: 4g | Vitamin A: 808IU | Vitamin C: 16mg | Calcium: 28mg | Iron: 1mg