Easy, quick marinated tomato salad in red onions can be prepped and eaten in 20 minutes with delicious, bold and satisfying flavors. A cousin to the balsamic vinegar reduction, these tomatoes are instead marinated in red wine vinegar for a tart powerful side salad. Fresh, homemade, yum!
Tomato Salad with Red Onions
You will love this marinated tomato salad, which as the perfect balance of veggies, herbs, and homemade dressing. So simple to make, this is sure to be a lunch go to recipe!
Full measurements with an easy to follow printable recipe card are at the bottom of the post, helping you print for shopping and to cook in the kitchen.
- red onion
- fresh basil
- olive oil
- red wine vinegar
- sea salt
- cracked peppercorn
How to Make Tomato Salad with Red Wine Vinegar Dressing
- First prep the onions by cutting sliced thin (or chop if you prefer) and slice the tomatoes into wedges.
- In a separate bowl, add tomatoes and fresh basil. Set aside.
- In a small bowl, whisk together olive oil, vinegar, salt and pepper.
- Add onions to tomatoes and mix well.
- Pour oil mixture over tomatoes and mix well.
- Let stand for a minimum of 20 minutes at room temperature. Stir before eating to prevent settling.
- Please see note about refrigerating olive oil dressings.
WATCH ME MAKE THIS MARINATED TOMATO SALAD
How to make Onions Less Strong
Red onions can often be over powering for some people. If you love red onions but would like them better toned, a simple trick is to cut your onion and then put in water for 10-15 minutes. This helps soften the onion and pull out some of the flavors.
Note about Cold Olive Oil
Olive oil can change consistency in the fridge if you keep your refrigerator super cold – it is, after all, a fat. How fast it happens really boils down to the actual olive oil and what ingredients are in it. Typically this does not affect the taste, however, it can look or seem weird. Simple bring your salad back up to room temperature for 30 minutes to liquefy the olive oil again or only add right before serving.
Is Marinated Tomato Salad Low Carb or Keto Friendly?
Typically tomatoes are not widely used in Keto, but in small increments, can be eaten in most low carb diets. It really depends how strict you choose to be with your dieting. Here is nutritional information for this corn salad- broken down into 6 servings. This site uses Carb Manager that automatically inputs the ingredients into the system and gives out an estimated nutritional value.
Please always be careful to double check with your own apps. Carb Manager gave this recipe an “A”.
Additional Ingredients for Marinated Tomato Salads
Marinated salads are so good with just red onions and tomatoes, but you can add a few different things to boost up your salads if you like.
- Use any kind of tomato for this salad, including cut cherry and tomato salads. I prefer a slicing tomato or a ROMA tomato.
- Add quartered or sliced cucumbers
- Like Cheese? Tomato salad goes great with cheeses like crumbled blue cheese, feta cheese, or small balls of mozzarella
- Try adding a 1/2 cup of Fresh or Grilled Cooked Corn Kernels
- Top with diced Avocado
- Crumbled Bacon is delicious sprinkled on top of the tomatoes prior to serving
- Change up the red wine vinegar for other vinegar flavors. Try the original suggestion first, but feel free to substitute the recipe for white wine vinegar or balsamic vinegar in a pinch (This will change the salad flavor too)
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If you enjoyed this recipe or made tweaks that worked well, please leave me a comment and let me know. I always enjoying trying your changes as well!
- half of a red onion, sliced thin OR chopped
- 3 medium tomatoes, cut into 16 wedges each
- 1/4 cup chopped fresh basil
- 2 tablespoons olive oil
- 1 tablespoon red wine vinegar
- 1/2 teaspoon sea salt
- 1/4 teaspoon cracked peppercorn
- Prep your red onions, sliced tomatoes, and fresh basil.
- In a bowl, add tomatoes, onions and basil. Set aside.
- In a new small bowl, whisk together olive oil, red wine vinegar, salt and pepper.
- Pour oil mixture over tomatoes and mix well.
- Let tomatoes and onions marinate for 20 minutes at room temperature.
- If you choose to refrigerate, please note that olive oil is a fat and solidifies to an extent after long periods in colder temperatures. Make sure you bring salad to room temperature for 30 minutes and then stir to liquefy olive oil in salad prior to serving. This is with all olive oils.
- See article for ingredient substitutions that you can add to this easy marinated tomato salad.
- You can chop or slice red onions
- I have also used 2 large tomatoes in place of 3 medium tomatoes
Nutrition Information:Yield: 6 Serving Size: 1
Amount Per Serving: Calories: 55Total Fat: 5gSaturated Fat: 1gTrans Fat: 0gUnsaturated Fat: 4gCholesterol: 0mgSodium: 180mgCarbohydrates: 3gFiber: 1gSugar: 2gProtein: 1g
Nutritional information is automatically calculated with ingredients and serving size and may not be accurate. Please always double check with your own nutritional apps as well.