Marinated Cucumbers Onions Tomatoes

Featured in: Seasonal Simple Bites

Bring together crunchy cucumbers, ripe tomatoes, and zesty sliced onions dressed in a tangy vinaigrette. This vibrant combination delivers refreshing flavors and satisfying texture, ideal for warm weather gatherings or weeknight dinners. Fresh herbs like parsley or dill add brightness, while a hint of red pepper flakes can give a mild kick. After chilling, the vegetables soak up all the savory notes, making each bite delicious and fragrant. Serve as a light side or enjoy as an appetizer, paired perfectly with grilled meats or fish.

Updated on Fri, 31 Oct 2025 09:22:00 GMT
Crisp marinated cucumbers, onions, and tomatoes arranged beautifully in a bowl.  Pin It
Crisp marinated cucumbers, onions, and tomatoes arranged beautifully in a bowl. | fordish.com

This Marinated Cucumbers, Onions, and Tomatoes recipe is a refreshing and flavorful side dish, perfect for summer gatherings or everyday meals. Crisp cucumbers, juicy tomatoes, and zesty onions are marinated in a tangy vinaigrette, creating a vibrant and delicious salad.

Growing up, my family loved making this salad for cookouts and picnics. It was always popular at our summer table because the bright vegetables and simple marinade were a hit with everyone.

Ingredients

  • Cucumbers: 2, thinly sliced
  • Tomatoes: 1 pint cherry or grape, halved
  • Onion: 1 small red or white, thinly sliced
  • Apple cider vinegar or red wine vinegar: 1/4 cup
  • Extra virgin olive oil: 2 tbsp
  • Garlic: 1 clove, minced
  • Fresh parsley or dill: 1 tbsp, chopped
  • Salt and pepper: To taste
  • Red pepper flakes: 1/2 tsp (optional)

Instructions

Prep vegetables:
Wash and slice the cucumbers, halve the tomatoes, and thinly slice the onion.
Make the marinade:
In a mixing bowl, whisk together vinegar, olive oil, garlic, salt, and pepper. Add red pepper flakes if using.
Combine ingredients:
Combine cucumbers, tomatoes, and onions in a large bowl.
Marinate:
Pour the marinade over the vegetables and toss gently to coat evenly.
Chill:
Cover and refrigerate for at least 30 minutes, preferably a few hours or overnight.
Serve:
Toss again before serving and garnish with fresh herbs.
Vibrant marinated cucumbers, onions, and tomatoes tossed in tangy vinaigrette, ready to enjoy.  Pin It
Vibrant marinated cucumbers, onions, and tomatoes tossed in tangy vinaigrette, ready to enjoy. | fordish.com

My grandmother always made extra so there would be leftovers for lunch the next day. I remember passing the bowl around the table while everyone tried to get a little extra tomato.

Serving Suggestions

Pair this salad with grilled meats, fish, or tofu for a fresh side. It also works great alongside sandwiches or wraps as a crunchy complement.

Variations

Try adding feta cheese, avocado, or different herbs like basil for new flavors. For a spicy twist, increase the red pepper flakes or add sliced jalapeno.

Storing Leftovers

The salad will keep covered in the refrigerator for up to 3 days. Stir before serving and add a sprinkle of fresh herbs for best taste.

Fresh summer marinated cucumbers, onions, and tomatoes drizzled with zesty dressing for color. Pin It
Fresh summer marinated cucumbers, onions, and tomatoes drizzled with zesty dressing for color. | fordish.com

This salad adds a crisp splash of color to any meal. Make it ahead for easy summer dining!

Recipe FAQs

Can I use different types of tomatoes?

Yes, any ripe tomato variety works well—cherry, grape, roma, or heirloom all offer great flavor.

Should I peel the cucumbers first?

Peeling is optional. Leave skins on for texture and color, or remove for a softer taste.

How long do the vegetables need to marinate?

At least 30 minutes is recommended, though a few hours or overnight deepens the flavors.

Can I substitute red wine vinegar for apple cider vinegar?

Absolutely! Both vinegars bring a pleasant tang, so choose your favorite or what you have on hand.

What herbs work well for garnish?

Fresh parsley or dill are classic choices. Basil or cilantro also pair nicely with the vegetables.

Is this dish served chilled or at room temperature?

It is best served chilled for enhanced crunch and refreshing flavor, especially during summer.

Marinated Cucumbers Onions Tomatoes

Crisp cucumbers, ripe tomatoes, and onions marinated for a light, flavorful summer side.

Prep Time
15 minutes
Time to Cook
5 minutes
Overall Time
20 minutes
Recipe by Fordish Mia Harper


Skill Level Easy

Cuisine American

Result 4 Portion Size

Dietary Details Plant-Based, No Dairy, Gluten-Free

Ingredient List

Vegetables

01 2 medium cucumbers, thinly sliced
02 1 pint cherry or grape tomatoes, halved
03 1 small red or white onion, thinly sliced

Dressing

01 1/4 cup apple cider vinegar or red wine vinegar
02 2 tablespoons extra virgin olive oil
03 1 clove garlic, minced
04 1 tablespoon chopped fresh parsley or dill
05 Salt and freshly ground black pepper, to taste
06 1/2 teaspoon red pepper flakes (optional)

Directions

Step 01

Prepare Vegetables: Thoroughly wash the cucumbers, tomatoes, and onion. Slice the cucumbers into thin rounds, halve the tomatoes, and slice the onion thinly.

Step 02

Mix the Vinaigrette: In a separate bowl, whisk together vinegar, olive oil, minced garlic, salt, and pepper. Add red pepper flakes for additional heat if desired.

Step 03

Combine Ingredients: Transfer sliced cucumbers, tomatoes, and onion to a large mixing bowl. Pour the prepared vinaigrette over the vegetables and gently toss to ensure even coating.

Step 04

Marinate the Salad: Cover the bowl and refrigerate for at least 30 minutes or up to overnight to allow flavors to develop.

Step 05

Finish and Serve: Just before serving, toss the salad again and garnish with chopped fresh herbs.

Tools Needed

  • Large mixing bowl
  • Small whisk or fork
  • Chef's knife
  • Cutting board
  • Refrigerator-safe cover or plastic wrap

Nutrition Details (each serving)

Values provided for reference. Consult your medical provider with questions.
  • Energy Value: 82
  • Lipids: 5.5 g
  • Carbohydrates: 8 g
  • Proteins: 1.3 g