Fresh, crisp, and full of flavor, marinated cucumbers, onions, and tomatoes are the perfect side dish that brightens up any meal. The refreshing crunch of cucumbers, the sweet tang of tomatoes, and the mild bite of onions come together in a zesty marinade that enhances their natural goodness. It’s the kind of dish you can whip up quickly, yet it tastes like something that’s been prepared with love and patience.
This simple yet satisfying recipe is a summer favorite, often served at picnics, potlucks, or as a cooling side dish for hearty dinners. Whether you’re grilling outdoors or enjoying a quiet family dinner, this marinated salad adds a splash of color and a burst of freshness to your table.
Why You’ll Love This Marinated Cucumbers, Onions, and Tomatoes
This dish is light, healthy, and incredibly versatile. It’s naturally gluten-free, can be made vegan, and works well with almost any main course. Plus, the longer it sits, the better the flavors develop—making it an ideal make-ahead dish for busy days. The tangy-sweet marinade ensures every bite is bright and refreshing, while the mix of textures keeps it interesting.
What Kind of Vinegar Should I Use?
The type of vinegar you choose plays a big role in shaping the flavor of your marinade. Apple cider vinegar gives a fruity tang, red wine vinegar adds boldness, and white vinegar offers a clean, sharp taste. If you prefer a slightly sweeter flavor, rice vinegar is also a wonderful choice. No matter which one you choose, make sure it balances well with your seasonings and complements the fresh vegetables.


Ingredients for the Marinated Cucumbers, Onions, and Tomatoes
To create this refreshing dish, you’ll need just a handful of everyday ingredients. Each one has its own role, whether it’s crunch, tang, or zest, all working together for the perfect balance.
- Cucumbers – They bring a cool crunch and soak up the marinade beautifully.
- Tomatoes – Juicy and slightly sweet, they add freshness and vibrant color.
- Onions – A mild sharpness that balances the sweetness of the tomatoes.
- Vinegar – Provides the zesty tang that makes this dish so refreshing.
- Olive Oil – Adds smoothness and helps the marinade cling to the veggies.
- Sugar or Honey – A touch of sweetness rounds out the acidity.
- Salt & Black Pepper – Essential seasonings that highlight the natural flavors.
- Fresh Herbs (like dill or parsley) – For an aromatic, garden-fresh finish.
How To Make the Marinated Cucumbers, Onions, and Tomatoes
Step 1: Slice and Prep the Vegetables
Wash the cucumbers, tomatoes, and onions thoroughly. Slice the cucumbers into thin rounds, cut the tomatoes into wedges or halves if using cherry tomatoes, and slice the onions into rings.
Step 2: Prepare the Marinade
In a mixing bowl, whisk together vinegar, olive oil, sugar or honey, salt, and pepper until the sugar dissolves and the mixture looks smooth.
Step 3: Combine and Toss
Place the sliced cucumbers, tomatoes, and onions into a large bowl. Pour the marinade over the vegetables, then toss gently to coat everything evenly.
Step 4: Add Fresh Herbs
Sprinkle in fresh dill or parsley and stir again so the herbs are evenly distributed.
Step 5: Marinate and Serve
Cover the bowl and refrigerate for at least an hour, giving time for the flavors to meld. The longer it sits, the better it tastes. Serve chilled for maximum refreshment.
Serving and Storing Marinated Cucumbers, Onions, and Tomatoes
This recipe makes enough to serve about 6 people as a side dish. It’s best enjoyed chilled, right out of the fridge, making it perfect for summer meals. Store leftovers in an airtight container in the refrigerator for up to 3 days. The vegetables will soften slightly over time but the flavor will deepen, giving you an even zestier dish the next day.
What to Serve With Marinated Cucumbers, Onions, and Tomatoes?
This light and tangy salad pairs beautifully with a variety of dishes. Here are some delicious ideas:
Grilled Chicken
The smoky char of chicken contrasts perfectly with the crisp freshness of the salad.
Barbecue Ribs
The acidity of the marinade helps cut through the richness of slow-cooked ribs.
Baked Salmon
Its mild flavor gets a refreshing lift from the cucumber-tomato mix.
Burgers
Add balance and brightness to a juicy beef or veggie burger.
Pasta Salad
Serve it alongside creamy pasta salads for a refreshing counterpoint.
Grilled Steak
The tangy crunch provides a fresh sidekick to hearty cuts of beef.
Roasted Potatoes
The cool crispness complements the warm, savory potatoes beautifully.
Sandwiches and Wraps
Use it as a side to deli-style sandwiches or Mediterranean-inspired wraps.
Want More Fresh Salad Ideas?
If you enjoy the crisp and zesty bite of these marinated cucumbers, onions, and tomatoes, you’ll love exploring other refreshing recipes on NoraNosh:
- Avocado Egg and Chickpea Salad with Lemon and Herbs – Creamy avocado meets protein-rich chickpeas for a satisfying, nutrient-packed salad.
- Easy Veggie Patties – A Crispy, Flavorful Delight – Perfect for a light meal or snack, packed with wholesome vegetables.
- Italian Grinder Salad – A Bold and Flavorful Twist on a Classic – A hearty, flavor-packed salad inspired by the iconic sandwich.
- Easy Asian Slaw – Crunchy, tangy, and ideal for pairing with grilled meats.
- Healthier Waldorf Salad – A wholesome spin on a timeless favorite with fresh apples and walnuts.
Save This Pin For Later
📌 Save this recipe to your Pinterest board so you can come back to it whenever you need a quick, refreshing side dish.
And don’t forget—I’d love to hear how yours turned out. Did you stick with apple cider vinegar or try rice vinegar for a twist? Maybe you added extra herbs for a garden-fresh kick? Share your version in the comments below!
Explore beautifully curated health-boosting salads and refreshing recipes on NoraNosh Recipes on Pinterest and discover your next kitchen favorite.

Marinated Cucumbers, Onions, and Tomatoes
Equipment
- Mixing Bowl
- Whisk
- Knife
Ingredients
Ingredients
- 2 large cucumbers
- 3 medium tomatoes
- 1 medium red onion
- 0.5 cup vinegar (apple cider, red wine, or white)
- 3 tablespoons olive oil
- 1 tablespoon sugar or honey
- 1 teaspoon salt
- 0.5 teaspoon black pepper
- 2 tablespoons fresh dill or parsley, chopped
Instructions
- Wash cucumbers, tomatoes, and onion thoroughly. Slice cucumbers into thin rounds, tomatoes into wedges, and onion into thin rings.
- In a bowl, whisk together vinegar, olive oil, sugar or honey, salt, and pepper until well combined.
- Place vegetables into a large mixing bowl and pour marinade over them. Toss gently to coat.
- Add chopped dill or parsley and mix lightly.
- Cover the bowl and refrigerate for at least 1 hour before serving to allow flavors to meld. Serve chilled.