Marinated Tomato Cucumber and Onion Salad

Our Marinated Tomato Cucumber and Onion Salad is a versatile salad that can be eaten as-is, piled on top of lettuce or greens, or forked through cooked pasta or rice. Although this salad is quite humble in its ingredient list, it results in a refreshing salad that sings summer.

The Marinated Tomato Cucumber and Onion Salad is the epitome of simplicity, showcasing how a few fresh ingredients can create magic on a plate. The tangy marinade hugged each slice, promising a burst of zest in every forkful. It’s perfect for picnics, potlucks, or a quick, energizing lunch. Get ready to enjoy the fresh symphony of flavors that this dish offers!

The Charm of Marinated Tomato Cucumber and Onion Salad

Summer salads are just so easy to fall in love with. When the sun’s rays wrap the world in warmth, there’s nothing like a refreshing salad to balance the heat. Imagine crunchy cucumbers, ripe tomatoes, and zesty onions coming together in a delicious jumble of health and happiness on your plate.

Not only do these vibrant veggies paint a picture of summer splendor, but they’re also champions of good health. They keep you hydrated, boost your vitamin intake, and they’re light on the tummy too.

Plus, they’re heart-friendly and keep your skin glowing. So go ahead, indulge yourself in this marinated tomato cucumber and onion salad. bright, beautiful salad. Savor the season as well as give your body the wellness it deserves.

Ingredients Spotlight: The Heart of the Dish

Long English Cucumber or Regular Seeded Cucumber

Quantity: 1 diced or sliced in rounds

Health Benefits: Cucumbers are hydrating powerhouses! They’re packed with vitamins B and C and essential minerals. Plus, they’re super for your digestive health.

Large Tomatoes

Quantity: 2-3, diced

Health Benefits: Juicy tomatoes are summer’s pride, rich in lycopene, vitamins A, C, and K. They’re antioxidant wonders, great for skin and heart health.

Season Highlight: In their summer peak, tomatoes are irresistibly fragrant and sweet—nothing beats their sun-ripened taste!

Red Onion

Quantity: ½, sliced

Health Benefits: Onions are more than just flavor boosters. They have quercetin, an antioxidant that fights inflammation, and they help in maintaining good cholesterol levels.

Fresh Herbs (Parsley, Basil, and/or Dill)

Quantity: 1 tablespoon, optional

Health Benefits: Fresh herbs add not just a flavor kick but also a host of benefits, from anti-inflammatory properties to digestion aids.

Season Highlight: Fresh in summer, these herbs are at their aromatic best. They elevate the salad’s freshness and are often just a garden away!

Olive Oil

Quantity: 2 tablespoons

Health Benefits: A staple of heart health, olive oil is the good fat your body loves. It’s known for supporting brain health and reducing the risk of chronic diseases.

Red Wine Vinegar

Quantity: 1 tablespoon

Health Benefits: This zippy condiment can promote good blood sugar levels and has some astringent properties that may aid in digestion.

Salt & Pepper

Quantity: to taste

Health Benefits: While they should be used moderately, salt helps regulate body fluids, and pepper can boost the absorption of nutrients.

Get set to layer these ingredients into a colorful marinated tomato cucumber and onion salad—your body and taste buds will thank you!

Preparing Your Vegetables: A Step-by-Step Guide

Nothing beats the taste of fresh produce in a salad. To get the best results, start by selecting the freshest vegetables you can find. Look for cucumbers that are firm and vibrant green, tomatoes that have a slight give when gently pressed, and onions that are tight and flaky on the skin.

Step 1: Selecting the Best

Hit your local farmers’ market or produce aisle. Pick vegetables with bright, consistent colors and avoid any spots or blemishes. Freshness is key for flavor and crunch!

Step 2: Washing It Right

Wash your veggies under cold running water to remove any dirt or pesticides. A soft vegetable brush can be used for cucumbers. Pat them dry gently with a clean towel.

Step 3: The Art of Slicing and Dicing

For cucumbers, leave the skin on for extra texture and slice them thinly for a delicate crunch. Tomatoes should be diced to capture their juicy essence in every bite. Thinly slice the red onion to lend a slight sharpness that compliments the sweet tomatoes and cool cucumber.

Remember, fresh vegetables not only taste better but also retain more nutrients, making your salad a powerhouse of health. With your veggies prepped, you’re all set to assemble a mouth-watering masterpiece!

The Art of Marination: Unlocking Flavors

Marination is a culinary technique steeped in both science and art. It involves soaking ingredients in a flavorful liquid mix, profoundly enhancing the dish’s taste and texture. The marinade serves a dual purpose: firstly, it tenderizes by breaking down the ingredients’ fibrous structures, allowing them to better absorb moisture. Secondly, it imbues the vegetables with a depth of flavor that mere seasoning cannot achieve.

The choice of vinegar and oil in the marinade is crucial, as they form the base that carries the flavors. Red wine vinegar is a popular choice due to its fruity notes that complement a vast array of vegetables, while apple cider vinegar adds a subtle sweetness and tanginess. For a more robust taste, balsamic vinegar imparts a rich, slightly sweet flavor, perfect for heartier salads.

When it comes to oils, extra-virgin olive oil is the go-to for its health benefits and its ability to round out the sharper notes of vinegar with its smooth, buttery profile. For a lighter touch, grapeseed oil is a neutral flavor carrier, making it an excellent canvas for any combination of herbs and spices. And for those craving a hint of nuttiness, sesame oil can add an unexpected twist.

Whether you let your salad marinate for a brief twenty minutes or several hours, the process is transformative. The result is a symphony of intensified tastes melding together to create a delightful eating experience.

Recipe: Marinated Tomato, Cucumber, and Onion Salad


  • Long English cucumber, sliced (Quantity: 1)
  • Large tomatoes, diced (Quantity: 2-3)
  • Red onion, thinly sliced (Quantity: ½)
  • Fresh herbs (parsley, basil, and/or dill), finely chopped (Quantity: 1 tablespoon, optional)
  • Extra-virgin olive oil (Quantity: 2 tablespoons)
  • Red wine vinegar (Quantity: 1 tablespoon)
  • Salt and pepper, to taste

Instructions for Marinated Tomato Cucumber and Onion Salad

Prepare the Vegetables:

Wash the cucumber, tomatoes, and red onion under cold running water. Pat them dry with a clean towel. Proceed to slice the cucumber thinly, dice the tomatoes, and thinly slice the onion.

Create the Marinade:

In a large bowl, whisk together the olive oil and red wine vinegar. Add a pinch of salt and fresh cracked pepper to taste. This creates the base of your marinade.

Combine Vegetables and Marinade:

Add the sliced cucumbers, diced tomatoes, and sliced onions to the bowl with the marinade. Toss gently to coat all the vegetables evenly. If you’re using fresh herbs, sprinkle them in now. This step allows each vegetable to start absorbing the flavors.

Let It Marinate:

Cover the bowl with plastic wrap or a lid and place it into the refrigerator. Let the salad marinate for at least 30 minutes. For a more profound flavor, you can let it marinate for up to 2 hours; just remember that the longer it sits, the more pronounced the flavors will be.

Final Touches:

Before serving, give the salad one final toss to redistribute the marinade. Do a taste test and adjust the seasoning with additional salt and pepper if needed.

Plate and Serve:

Transfer the marinated salad to a serving dish, and if you desire, garnish with additional fresh herbs. Serve chilled as a refreshing side dish to any meal.

Enjoy this vibrant, flavorful salad that tantalizes your taste buds and offers a bounty of health benefits. Remember to make it fresh and consume it within a day to savor the peak flavors and crispness of the vegetables.

Customization and Variations: Tailor to Your Taste

Marinated Tomato Cucumber and Onion Salad

Catering to individual preferences or dietary needs can transform this classic marinated salad into a personal favorite. For those adhering to a low-sodium diet, consider replacing the salt with a sprinkle of dried herbs such as oregano or thyme for additional flavor without the sodium. If you’re looking to add a protein punch, consider tossing in some chickpeas or diced grilled chicken. For a vegan option, swap any animal-based ingredients with plant-based alternatives, like tofu or tempeh, that you have marinated separately.

Don’t hesitate to get creative with the texture and flavor profile. Avocado lovers might enjoy the creamy addition of ripe avocado chunks, while those craving a sweet element can introduce slices of apple or pear. If you have a penchant for cheese, scatter some feta or goat cheese over the salad for a tangy twist.

In the spirit of adapting to what’s in season, you can mix in roasted vegetables such as zucchini or bell peppers for added warmth and depth. Furthermore, using different oils like walnut or avocado oil can introduce new dimensions to the dish.

Serving Suggestions for Marinated Tomato Cucumber and Onion

This marinated tomato cucumber and onion salad is a versatile addition to any dining occasion. As a standalone dish, it’s perfect for a light, refreshing lunch—especially on warm days when you crave something hydrating and nourishing. Alternatively, it serves as an excellent side dish, complementing an array of main courses.

For casual gatherings like BBQs and picnics, this marinated tomato cucumber and onion salad pairs beautifully with grilled meats or veggie burgers, offering a zesty counterpoint to smoky flavors. It’s also an excellent accompaniment to seafood, enhancing the delicate taste of fish or shrimp with its bright and tangy profile. During formal dinners, present it alongside roasted or braised meats to cut through the richness with its crisp freshness.

On buffet tables, this salad can be the centerpiece of a Mediterranean-inspired spread, surrounded by hummus, flatbreads, olives, and various dips. For those who enjoy having interactive meals, consider a build-your-own taco night, with the marinated tomato cucumber and onion salad serving as a vibrant topping option along with other fixings. No matter the occasion, this marinated salad is sure to be a hit, bringing both color and flavor to your meal.

More Serving Suggestions: Perfect Pairings and Occasions

  • As a standalone dish, serve it with crusty bread or pita to soak up the delicious marinade, creating a simple yet satisfying light meal.
  • Pair with grilled steak or chicken at your next BBQ to add a refreshing balance to rich, smoky flavors.
  • Offer alongside fish tacos or ceviche for a complementary citrusy and crisp bite that elevates the meal.
  • Serve as a fresh side with pasta dishes, especially those with a tomato or lemon-based sauce, for a harmonious combination.
  • Introduce it at a potluck or buffet as a palette cleanser between sampling a variety of different dishes.
  • Use as a topping for gourmet burgers or hot dogs to add a gourmet twist to classic American fare.
  • At a formal dinner, it can accompany entrées like lamb or duck for a contrast of textures and flavors.

Remember that the versatility of this salad makes it a perfect dish for experimentation, so don’t shy away from introducing it into new culinary contexts!


In summation, the marinated tomato cucumber and onion salad stands out as a testament to the beauty of simplicity in the culinary world. Its vibrant colors, crisp textures, and harmonious blend of flavors embody the essence of fresh, healthful eating.

Whether it graces your dinner table as a bright side dish, takes center stage at a summer picnic, or becomes a staple in your meal-prep routine, this salad offers versatility and adaptability to suit any palate or occasion. Its preparation invites creativity and personalization, ensuring that each rendition can be as unique as the individuals enjoying it.

Truly, this is a dish that celebrates the joy of eating well and the shared experiences that come with it.

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Happy cooking and bon appétit!

marinated tomato cucumber and onion salad in a glass bowl

Marinated Tomato Cucumber and Onion Salad

This versatile salad can be eaten as-is, piled on top of lettuce or greens, or forked through cooked pasta or rice.
Prep Time 10 minutes
Cook Time 2 hours
Total Time 2 hours 10 minutes
Course Salad
Cuisine American
Servings 4


  • 1 large mixing bowl


  • 1 cup water
  • ½ cup vinegar of choice distilled vinegar, apple cider vinegar or red wine vinegar
  • ¼ cup vegetable oil
  • 1 tablespoon sugar
  • 1/2 teaspoon salt or to taste
  • 1/2 teaspoon freshly ground black pepper or to taste
  • 4 cucumbers semi-peeled sliced 1/4-inch thick
  • 4 tomatoes or (20 cherry tomatoes) cut into wedges
  • 1 red onion sliced and separated into rings


  • Gather all ingredients.
  • Whisk water, vinegar, oil, sugar, salt, and pepper together in a large bowl until smooth.
  • Add cucumbers, tomatoes, and onion and stir to coat.
  • Cover bowl with plastic wrap; refrigerate for at least 2 hours.
  • Enjoy!


Nutrition Information
Calories: 104 | Carbohydrates: 7g | Protein: 2g | Fat: 8g | Saturated Fat: 1g | Sodium: 6mg | Potassium: 296mg | Fiber: 2g | Sugar: 4g | Vitamin A: 591IU | Vitamin C: 12mg | Calcium: 29mg | Iron: 1mg
Keyword marinated tomato cucumber and oniin salad, salad

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