If you’re searching for a light and refreshing dish that’s full of vibrant flavor, Marinated Tomato Onion Salad is an excellent choice. This easy salad combines ripe tomatoes, crisp red onion, fresh cucumber, parsley, and a tangy homemade vinaigrette that brings every ingredient together beautifully. The vegetables absorb the flavorful dressing as they rest, creating a refreshing side dish that’s perfect for cookouts, family dinners, picnics, or meal prep. With no cooking required and only a few simple ingredients, this classic salad is an easy way to enjoy fresh produce throughout the year.
Why You’ll Love This Recipe
Marinated Tomato Onion Salad is simple to prepare, naturally colorful, and packed with fresh flavor. The combination of juicy tomatoes, crunchy cucumbers, and crisp onions creates a refreshing texture, while the homemade dressing adds just the right balance of acidity and sweetness. Since the salad tastes even better after marinating, it’s an ideal make-ahead recipe for busy schedules and entertaining.
At Richy Bites, we believe fresh ingredients often create the most memorable meals. Alessia enjoys sharing recipes that celebrate simple flavors without requiring complicated preparation. This salad is proof that a handful of wholesome ingredients can come together to create something truly delicious.
Ingredients You’ll Need
| Ingredient | Amount |
|---|---|
| Roma or vine-ripened tomatoes, cut into wedges | 2 pounds |
| Red onion, thinly sliced | 1 medium |
| English cucumber, sliced | 1 cup |
| Fresh parsley, chopped | ½ cup |
| Red wine vinegar | ⅓ cup |
| Extra virgin olive oil | ¼ cup |
| Granulated sugar | 2 tablespoons |
| Salt | 1 teaspoon |
| Black pepper | ½ teaspoon |
| Dried oregano | 1 teaspoon |
| Garlic, minced | 1 clove |
How to Make Marinated Tomato Onion Salad
Preparing Marinated Tomato Onion Salad is quick and requires no cooking. Fresh vegetables are sliced and gently combined before being tossed with a homemade vinaigrette made from red wine vinegar, olive oil, garlic, oregano, sugar, salt, and pepper.
Once everything is mixed, the salad rests so the vegetables can absorb the dressing. This simple marinating step enhances every bite, giving the tomatoes and onions plenty of time to develop their delicious flavor.
Step-by-Step Instructions
- Slice the tomatoes into evenly sized wedges.
- Thinly slice the red onion into half moons.
- Slice the cucumber into thin rounds if using.
- Place the tomatoes, onions, cucumber, and chopped parsley into a large serving bowl.
- In a separate bowl or jar, combine the red wine vinegar, sugar, salt, black pepper, oregano, and minced garlic.
- Whisk until the sugar completely dissolves.
- Slowly whisk in the olive oil until the dressing becomes well blended.
- Pour the dressing over the vegetables.
- Toss gently to coat everything evenly without breaking the tomatoes.
- Let the salad rest at room temperature for about 15 minutes, then refrigerate for another 15 to 30 minutes before serving, stirring once during chilling.
Helpful Tips
Choose ripe but firm tomatoes so they hold their shape after marinating.
Slice the vegetables into similar sizes for even flavor distribution.
Allow enough marinating time because the dressing becomes more flavorful as it sits.
Use high-quality extra virgin olive oil for the best taste.
Gently stir the salad to avoid crushing the tomatoes.
Recipe Details
| Detail | Information |
|---|---|
| Flavor | Fresh, tangy, slightly sweet |
| Texture | Juicy, crisp, refreshing |
| Cuisine | American |
| Servings | 8 |
| Prep Time | 45 minutes |
| Cook Time | 0 minutes |
| Total Time | 45 minutes |
Notes and Variations
Cherry tomatoes can replace Roma tomatoes for a colorful presentation.
Fresh basil can be added alongside parsley for extra flavor.
A small amount of crumbled feta cheese makes the salad even more satisfying.
Use apple cider vinegar instead of red wine vinegar if preferred.
Thinly sliced avocado can be added just before serving.
Nutrition Information (Per Serving)
| Nutrient | Amount |
|---|---|
| Calories | 95 |
| Carbohydrates | 9g |
| Protein | 2g |
| Fat | 6g |
| Saturated Fat | 1g |
| Fiber | 2g |
| Sugar | 6g |
| Sodium | 300mg |
Frequently Asked Questions
How do you make Marinated Tomato Onion Salad?
Combine sliced tomatoes, onions, cucumber, and parsley in a large bowl. Prepare a dressing with red wine vinegar, olive oil, garlic, oregano, sugar, salt, and pepper. Toss everything together and allow the salad to marinate before serving.
How long should Marinated Tomato Onion Salad sit before serving?
For the best flavor, let the salad rest for about 15 minutes at room temperature, then refrigerate it for an additional 15 to 30 minutes. This allows the vegetables to absorb the dressing.
Can you make Marinated Tomato Onion Salad ahead of time?
Yes. This salad is an excellent make-ahead dish. Prepare it several hours before serving and refrigerate it until needed. Stir gently before serving to redistribute the dressing.
What dishes pair well with Marinated Tomato Onion Salad?
This refreshing salad pairs wonderfully with grilled chicken, steak, burgers, pork chops, seafood, barbecue dishes, roasted vegetables, sandwiches, and pasta salads. It also complements picnic and potluck menus.
Storage Instructions
Store leftover Marinated Tomato Onion Salad in an airtight container in the refrigerator for up to three days. Stir gently before serving because the vegetables will naturally release some liquid during storage. Although the salad remains flavorful, it is best enjoyed within the first two days while the vegetables retain their crisp texture. Avoid freezing because tomatoes and cucumbers become watery after thawing.
Print
Marinated Tomato Onion Salad | Fresh, Flavorful Summer Side
- Total Time: 45 minutes
- Yield: 8 servings 1x
- Diet: Vegetarian
Description
Marinated Tomato Onion Salad combines juicy tomatoes, crisp red onion, cucumber, fresh parsley, and a tangy homemade vinaigrette. This refreshing no-cook salad works well for lunches, cookouts, picnics, and meal prep.
Ingredients
2 pounds Roma or vine-ripened tomatoes, cut into wedges
1 medium red onion, about 150 grams, thinly sliced into half moons
1 cup English cucumber, about 150 grams, sliced into thin rounds
1/2 cup fresh parsley, about 15 grams, chopped
1/3 cup red wine vinegar, about 80 milliliters
1/4 cup extra virgin olive oil, about 60 milliliters
2 tablespoons granulated sugar, about 25 grams
1 teaspoon salt, about 6 grams
1/2 teaspoon black pepper, about 3 grams
1 teaspoon dried oregano, about 2 grams
1 garlic clove, about 5 grams, minced
Instructions
1. Cut the tomatoes into evenly sized wedges.
2. Slice the red onion into thin half moons.
3. Slice the cucumber into thin rounds.
4. Place the tomatoes, onion, cucumber, and chopped parsley in a large glass bowl.
5. Add the red wine vinegar, sugar, salt, black pepper, oregano, and minced garlic to a small bowl or jar.
6. Whisk or shake the dressing until the sugar fully dissolves and the mixture smells fragrant.
7. Slowly pour in the olive oil while whisking continuously until the dressing combines.
8. Pour the dressing over the vegetables.
9. Fold the salad gently until the vegetables are evenly coated without crushing the tomatoes.
10. Let the salad rest at room temperature for 15 minutes.
11. Transfer the salad to the refrigerator and chill for another 15 to 30 minutes.
12. Stir gently once halfway through the chilling time.
13. Serve cold or slightly chilled.
Notes
Choose ripe but firm tomatoes so the wedges hold their shape.
Slice the onion thinly to soften its sharp flavor during marinating.
Use a glass or nonreactive bowl because vinegar can react with some metals.
Allow at least 30 minutes of total resting time for the best flavor.
Cherry tomatoes may replace Roma or vine-ripened tomatoes.
Fresh basil may be added with the parsley.
Apple cider vinegar may replace red wine vinegar.
Add crumbled feta cheese just before serving for extra richness.
Store leftovers in an airtight container in the refrigerator for up to 3 days.
The salad tastes best within the first 2 days.
Do not freeze because tomatoes and cucumbers become watery after thawing.
Nutrition values are estimates and may vary by serving size and ingredient brand.
- Prep Time: 45 minutes
- Cook Time: 0 minutes
- Category: Lunch
- Method: No-Cook
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 95
- Sugar: 6 g
- Sodium: 300 mg
- Fat: 6 g
- Saturated Fat: 1 g
- Unsaturated Fat: 5 g
- Trans Fat: 0 g
- Carbohydrates: 9 g
- Fiber: 2 g
- Protein: 2 g
- Cholesterol: 0 mg
Conclusion
Marinated Tomato Onion Salad is a simple recipe that highlights the natural flavors of fresh vegetables with a light, homemade vinaigrette. The combination of juicy tomatoes, crisp onions, fresh herbs, and tangy dressing creates a refreshing side dish that’s suitable for everything from everyday lunches to backyard barbecues and holiday gatherings. Since it requires no cooking and can be prepared ahead of time, this salad is as convenient as it is delicious. Once you try this easy recipe, it’s sure to become one of your favorite fresh salads for any season.