Cucumber, Tomato and Onion Salad – Quick and Healthy!

Cucumber, Tomato and Onion Salad

Cucumber, Tomato and Onion salad is one of my favorite quick and easy summer recipes. It is always so nice to be able to head out to the garden, grab some fresh vegetables and throw a delicious dish together in just a few minutes. This healthy salad uses fresh cucumber, tomatoes, red onion, and a vinaigrette dressing to create the perfect side dish for those hot summer days when no one wants to heat the kitchen up by using the stove. You can toss this together early in the day, stick it in the fridge and have a delicious “salad” ready at dinner time. A serving of this comes in at only 133 calories and 9 net carbs, so this is one flavorful recipe that you won’t feel bad about enjoying! Try it out today!

Tips for making Cucumber, Tomato and Onion Salad:

  • Be sure to let it marinate! You want to make sure you give all of the flavors time to combine and to be absorbed by the vegetables!
  • Cucumbers and tomatoes can vary greatly in size – especially those that are homegrown. Use your best judgement when deciding how many to use.
  • Feel free to use a different sweetener, or even omit it if you are following a diet that requires you to do so.

This recipe would go great with:

Basic Burgers and Hot Dogs

Grilled Spatchcock Chicken

Steak and Potato Foil Packs

Four Ingredient Baked Chicken

Products I recommend for Cucumber, Tomato and Onion Salad:

Cutting Board


Vegetable Peeler

I would love to hear what you think of this recipe! Please let me know by leaving a comment below, and don’t forget to select a star rating! Thank you and enjoy!

Cucumber, Tomato and Onion Salad

This salad is incredibly easy to make, and an easy way to use fresh summer veggies.
Prep Time5 minutes
Marinating Time1 hour
Total Time1 hour 5 minutes
Course: Appetizer, Salad, Side Dish, Snack
Cuisine: American
Keyword: cucumber, dairy free, easy, fresh, Healthy, keto, light, low carb, olive oil, onion, quick, Red Onion, sugar, summer, tomato, vegan, Vegetables, vegetarian, vinegar
Servings: 6 people
Calories: 133kcal


  • ½ red onion
  • ¼ cup olive oil
  • ½ cup white vinegar
  • 2 tsp salt
  • 3 tbsp granulated sugar
  • 3 medium cucumbers
  • 2 large tomatoes


  • Slice the red onion. Combine it in a large bowl with the oil, vinegar, salt and sugar. Put to the side. Peel and slice the cucumbers and chop the tomatoes and add them to the bowl. Toss everything together and allow to marinate in the fridge for at least an hour before eating.


Sodium: 781mg | Calcium: 22mg | Vitamin C: 12.2mg | Vitamin A: 580IU | Sugar: 9g | Fiber: 2g | Potassium: 294mg | Calories: 133kcal | Saturated Fat: 1g | Fat: 9g | Protein: 1g | Carbohydrates: 11g | Iron: 0.4mg

If you like this recipe, you may also like my Sheet Pan Asparagus, Bacon and Tomato Salad with Dijon Vinaigrette, Caprese Pasta Salad or my Spicy Corn, Tomato and Zucchini Salad.

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