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Katie's Cucina » Recipes » Salad

Tomato and Onion Salad

Modified: Oct 4, 2022 · Published: Jun 18, 2019 by Katie · This post may contain affiliate links · Leave a Comment
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Balsamic Tomato & Onion Salad Marinated with Balsamic Vinaigrette in bowl with pinterest title text.

My Tomato and Onion Salad with Balsamic Vinegar comes together in minutes and is perfect as a make ahead summer side dish recipe. Full of fresh beef stake tomatoes, red onions, balsamic dressing and fresh herbs–it marinates for 4 hours for an ultra flavorful accompaniment to any barbecue dinner.

Tomatoes, red onion, basil, and dressing in bowl with whole tomatoes in background. title text.

Hello summer! Nothing screams summer to me more than a fresh tomato and onion salad. Tomatoes are bountiful in the summertime, and I find myself incorporating them into every meal imaginable. In past years, I have grown tomatoes. Which has elevated my need to have to come up with a wide-variety of tomato recipes. I’ve been making this balsamic tomatoes salad for quite some time now. It is absolutely the perfect side dish to any grilled meal.

After traveling up to Maine a few weeks ago it helped wrap my head around why people who live in colder climates really do relish every single day of the warmer weather. Living in Florida (and for the most part having warm weather year round) take the warm weather for granted. So as you make this recipe and enjoy it I hope you’ll relish the freshness and flavors of summer!

Table of contents

  • Kitchen Tools
  • Directions for Tomato and Onion Salad
  • FAQs
  • Tips & Tricks
  • Tomato Recipes

Kitchen Tools

sliced tomatoes, red onion, basil, and dressing in bowl in front of fresh tomatoes and red onions.

Here are a few of the kitchen tools I find helpful to make a marinated tomato salad. Most are basic kitchen tools that you most likely have on hand, others are items I find helpful in the kitchen.

  • Flexible Cutting Mats
  • Serrated Knife
  • OXO Handheld Mandoline Slicer
  • Bowl
  • 9″ Tongs

Directions for Tomato and Onion Salad

Closeup top view of tomato, onion, and basil salad next to fresh basil.

I love how easy this salad comes together, and how versatile it can be. I’ll make it in the morning right after I’m done cleaning up breakfast, so that the tomatoes can soak in the Litehouse® Balsamic Vinaigrette Dressing & Marinade for at least 4 to 6 hours. It’s perfect side dish to incorporate with a dinner on the grill, or even a side for a summer potluck.

This salad is very simple to create. There is absolutely no cooking time and it takes about ten minutes to prep. First you’ll want to wash, pat dry, and cut the tomatoes into eight slices per tomato.

Place the tomatoes in a large container (preferably one that has a lid, but if not you can use plastic wrap). Then, thinly slice the red onions using OXO Handheld Mandoline Slicer. If you don’t have one, don’t worry. Just make your cuts as thin as possible.

Add the red onions to the container. Pour on the Litehouse® Balsamic Vinaigrette Dressing & Marinade (any brand of balsamic vinaigrette can do). Mix well and place a lid on the container. Place in your refrigerator for 4 to 6 hours to chill and marinade. Right before you are ready to serve I like to add fresh herbs and season with salt and pepper. Give the tomato salad another good mix and serve immediately.

FAQs

How many people does this tomato salad recipe feed?

You can get about 8 half cup servings of this balsamic tomato salad.

Can I make tomato balsamic salad ahead of time?

Yes, in fact you need to let the tomatoes and onions marinate for at least four hours. It’s best to make this recipe in the morning to enjoy at lunch or dinnertime.

Tips & Tricks

sliced tomatoes, red onion, basil, and dressing in bowl next to bottle of Litehouse Balsamic Dressing.

Here are a few of my tips and tricks when making this tomato balsamic salad.

  • Balsamic Vinaigrette – I love the Litehouse® Balsamic Vinaigrette Dressing & Marinade because it isn’t as strong and pungent as traditional balsamic vinegar. It has a silky smooth texture and is well balanced giving just the right amount of balsamic in every bite. However any brand will do–whatever you like will work. I just have never found that I like straight balsamic vinegar for this salad.
  • Onions – I prefer to use red onions for this recipe as they are a little sweeter.
  • Tomatoes – I like using beef stake tomatoes for this recipe. You can use any variety you prefer though.
  • Herbs – I love to use fresh herbs from my garden to add an additional layer of freshness to the salad.

Tomato Recipes

sliced tomatoes, red onion, basil, and dressing in bowl with tomatoes and red onion blurred in background.

Here are a few of my favorite easy tomato recipes anyone can make at home! They don’t necessarily pair well together, but they all have one thing in common–they are loaded with tomatoes!

  • Pesto Bucatini with Shrimp and Grape Tomatoes
  • Instant Pot Coconut Curry Lentil Tomato Soup
  • Spinach, Arugula and Cherry Tomato Flatbread
  • Cherry Tomato and Chorizo Omelet
  • Grape Tomato & Ricotta Crostini
  • Oven Roasted Grape Tomatoes

Even the least skilled cook can make this easy recipe for Balsamic Marinated Tomato and Onion Salad. Absolutely, no cooking required. Just a little prep work, slicing, and marinating!

If you make this Tomato and Onion Salad with Balsamic Vinegar recipe, I would be honored and love for you to take the time to leave a star rating and comment! I spend hours developing and testing these recipes, and always love to hear feedback and user experience!

Don’t forget to FOLLOW ME on Facebook, Pinterest, and Instagram, and subscribe to my email list!

Blue bowl filled with tomatoes, red onions, and herbs.

Tomato and Onion Salad

My Tomato and Onion Salad with Balsamic Vinegar comes together in minutes and is perfect as a make ahead summer side dish recipe. Full of fresh beef stake tomatoes, red onions, balsamic dressing and fresh herbs–it marinates for 4 hours for an ultra flavorful accompaniment to any barbecue dinner.
5 from 1 vote
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Course: Lunch, Salad
Cuisine: American
Diet: Gluten Free, Low Lactose
Prep Time: 10 minutes minutes
Marinate Time: 4 hours hours
Total Time: 4 hours hours 10 minutes minutes
Servings: 8 servings
Calories: 62kcal
Author: Katie

Equipment

  • Refrigerator

Ingredients

  • 8 Tomatoes quartered
  • ¼ Cup Red onion
  • ⅓ Cup Balsamic Vinaigrette Dressing
  • 1 tablespoon Fresh parsley minced
  • 1 tablespoon Fresh oregano minced
  • 1 tablespoon Fresh basil chiffonade
  • Salt and pepper to taste

Instructions

  • Wash, pat dry, and cut the tomatoes into eight slices per tomato. Place the tomatoes in a large container. Then, finely slice the red onion using a mandolin slicer.
  • Next, add the thinly sliced red onions to the container. Pour the Balsamic Vinaigrette over the tomatoes and onions. Mix well and place a lid on the container.
  • Refrigerate for 4 to 6 hours. 
  • Right before serving, add the fresh herbs and season with salt and pepper. Mix once more, and serve immediately.

Notes

  • Balsamic Vinaigrette – I love the Litehouse® Balsamic Vinaigrette Dressing & Marinade because it isn’t as strong and pungent as traditional balsamic vinegar. It has a silky smooth texture and is well balanced giving just the right amount of balsamic in every bite. However any brand will do–whatever you like will work. I just have never found that I like straight balsamic vinegar for this salad.
  • Onions – I prefer to use red onions for this recipe as they are a little sweeter.
  • Tomatoes – I like using beef stake tomatoes or tomatoes on the vine for this recipe. You can use any variety you prefer though.
  • Herbs – I love to use fresh herbs from my garden to add an additional layer of freshness to the salad.

Nutrition

Serving: 0.5cup | Calories: 62kcal | Carbohydrates: 6g | Protein: 1g | Fat: 4g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Sodium: 95mg | Potassium: 310mg | Fiber: 2g | Sugar: 4g | Vitamin A: 1091IU | Vitamin C: 18mg | Calcium: 26mg | Iron: 1mg
Tried this Recipe? Tag me Today!Mention @KatieJasiewicz or tag #katiescucina!
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Disclosure: There are affiliate links present in this post. That means if you click on a link and purchase something. I will receive a small percentage of the sale at no additional cost to you. Thank you for your continuous support of Katie’s Cucina!

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About Katie

Katie is a busy mom of 2 children who loves to feed her family delicious meals that don't take hours to cook! She started her blog 15 years ago as a way to help others get cooking in the kitchen.

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I'm Katie Jasiewicz: home cook, food blogger, and recipe developer. A busy mom of two children who loves to feed her family delicious meals that don’t take hours to cook! My mission is to create easy-to-make modern comfort food for the busy family. (more)

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