This easy cucumber tomato onion salad is tossed in a sweet and tangy homemade marinade for the perfect summer side dish. Fresh, healthy, and packed with flavor.

Marinated Cucumber, Tomato, and Onion Salad

Looking for a simple, refreshing side dish that gets even better as it sits? This Marinated Cucumber, Tomato, and Onion Salad is a timeless favorite that combines crisp cucumbers, juicy tomatoes, and sweet onions in a light, tangy dressing.

Perfect for summer barbecues, family gatherings, picnics, and weeknight dinners, this easy vegetable salad requires minimal preparation while delivering maximum flavor. The longer it marinates, the more delicious it becomes.

Whether you’re serving grilled chicken, burgers, seafood, or sandwiches, this colorful salad adds freshness and vibrant flavor to any meal.

Why You’ll Love This Recipe

• Quick and easy to prepare
• Made with simple pantry ingredients
• Perfect for meal prep
• Light and refreshing
• Naturally dairy-free
• Great for summer entertaining
• Budget-friendly side dish
• Packed with fresh vegetables

The sweet and tangy marinade transforms ordinary vegetables into a crave-worthy salad everyone will enjoy.

Ingredients

For the Salad

• 2 large cucumbers, thinly sliced
• 3 medium tomatoes, chopped
• 1 medium onion, thinly sliced

For the Marinade

• ½ cup vinegar (white or apple cider vinegar)
• ¼ cup vegetable oil or olive oil
• ¼ cup water
• 2 tablespoons sugar
• 1 teaspoon salt
• ½ teaspoon black pepper

How to Make Marinated Cucumber Tomato Onion Salad

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