Kalyn's Kitchen

Greek Salad with Marinated Onions and Oregano

Use any type of sweet onions in this Greek Salad with Marinated Onions and Oregano, and this tasty take on Greek Salad is gluten-free, and meatless, and it’s definitely a summer treat. 

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Greek Salad with Marinated Onions and Oregano found on KalynsKitchen.com

Recently I got a big bag of sweet Vidalia onions, and it seemed like the perfect time to make this Greek Salad with Marinated Onions and Oregano again. I confess, I partly wanted to update the awful photos from 2007, when I made this right before school got out for the year. Now it’s almost that time of year again (with a lot more to celebrate) and this still seems like a perfect dinner after a long, hot day at school.

Greek salad is pretty basic, but marinating the Vidalia onions in olive oil and balsamic vinegar plus the addition of fresh oregano gives this version a little something extra. (Greek Salad with Marinated Onions and Oregano was updated  in May 2009.)

Greek Salad with Marinated Onions and Oregano found on KalynsKitchen.comPeel one Vidalia onion (or any type of onion will work) and then slice into fairly thin slices. I had slices about 1/4 inch thick.

Greek Salad with Marinated Onions and Oregano found on KalynsKitchen.com

Put onions in small Ziploc bag, then mix olive oil and balsamic vinegar and pour over onions. They should marinate 4-8 hours before you use them in the salad.

Make it a Meal:

For a school-night dinner, I’d eat this as an entire meal. If you wanted to use the salad as a side-dish for a low-carb meal, you could serve this with something like Kalyn’s Souvlaki and Grilled Zucchini.

More Salads with Feta Cheese:

Spinach Salad with Bacon and Feta from Kalyn’s Kitchen
Joanne Weir’s Cucumber and Feta Cheese Salad from David Lebovitz
Mediterranean Salad with Hummus Dressing from Kalyn’s Kitchen

Greek Salad with Marinated Onions and Oregano

Greek Salad with Marinated Onions and Oregano

Yield Makes 4 servings
Prep Time 15 minutes
Total Time 15 minutes

Greek Salad with Marinated Onions and Oregano is definitely a summer treat.


Ingredients for Marinated Onions:

  • 1 medium Vidalia onion
  • 2 T extra virgin olive oil, plus more for serving if needed
  • 1 T balsamic vinegar, plus more for serving if needed

Ingredients for Salad:

  • 3 small cucumbers (I used mini-cucumbers from Costco)
  • 4 small tomatoes
  • 10 pitted Kalamata Olives
  • 1 T chopped fresh oregano (or more)
  • (If you only have dried oregano, add 1 tsp. with the dressing ingredients when you assemble the salad.)
  • 1/4 cup crumbled Feta cheese (or more)
  • fresh ground black pepper to taste


  1. About 4-8 hours before serving the salad, peel onion and slice thinly.
  2. Separate onion into rings and put in small ziploc bag.
  3. Whisk together olive oil and balsamic vinegar and pour into bag.
  4. Let onions marinate in refrigerator until ready to assemble the salad.
  5. After onions have marinated for desired time, remove from refrigerator and drain the dressing into a small bowl. (I do this by opening one end of the ziploc bag and holding it over the bowl while tipping the bag.)
  6. Taste dressing and add more olive oil and balsamic vinegar if needed, whisking into dressing.
  7. Wash cucumbers and cut into slices about 1/2 inch thick. (Larger cucumbers will need to be cut in half and if you don’t have small cucumbers you may also need to peel them.)
  8. Cut tomatoes into halves, then cut each half into fourths to make eight pieces.
  9. Wash oregano and chop with chef’s knife.In large mixing bowl, toss together marinated onions, cucumbers, tomatoes, and Kalamata Olives.
  10. Toss with desired amount of dressing.
  11. Sprinkle with oregano and crumble Feta cheese over salad.
  12. Arrange on two plates, season with fresh-ground black pepper, and serve immediately.


Recipe created by Kalyn.

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 168Total Fat: 11gSaturated Fat: 3gTrans Fat: 0gUnsaturated Fat: 8gCholesterol: 8mgSodium: 147mgCarbohydrates: 17gFiber: 3gSugar: 10gProtein: 4g

Nutrition information is automatically calculated by the Recipe Plug-In I am using. I am not a nutritionist and cannot guarantee 100% accuracy, since many variables affect those calculations.

If you make this recipe I'd love to hear how it turns out. Leave a star rating or share on social media with the hashtag #KALYNSKITCHEN, thanks!

Low-Carb Diet / Low-Glycemic Diet / South Beach Diet Suggestions:
Greek Salad with Marinated Onions and Oregano is perfect for any phase of the South Beach diet and other low-glycemic eating plans. Both the sweet onions and the tomatoes have some carbs, so this may be too high in carbs for low-carb diets.

Find More Recipes Like This One:
Use Salad Recipes to find more recipes like this one. Use the Recipes by Diet Type photo index pages to find more recipes suitable for a specific eating plan. You might also like to Follow Kalyn’s Kitchen on Pinterest to see all the good recipes I’m sharing there.

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    20 Comments on “Greek Salad with Marinated Onions and Oregano”

  1. Rapunzel, so glad to hear you enjoyed it.

  2. Kalyn, it was fabulous! Marinating the onions really made the flavors pop! Loved it and posted it on my blog, thanks so much!

  3. Rapunzel, hope you will enjoy it!

  4. my herb garden is like a jungle, can't wait to use some fresh herbs in this tasty salad! Thank you, Kalyn!

  5. Robert, I’m not sure it’s really any of your business how I marinate my onions, but I wash the Ziploc bags and use them over and over. There is a good reason for using a bag rather than a dish, so you can turn it over and keep the onions covered with the marinade.

  6. Hi Kalyn,

    I was looking around for marinated onions recipes and I found your page!

    Great recipe, but I think that using a ziplock bag to marinate is a total waste of resources. I mean, you just throw it away when you are done, no?

    Perhaps a covered dish? I think it’s important for all public cookers to lead by example and start using common sense in the kitchen with disposables.

  7. I can’t wait to try this salad. I’ve actually never marinated onions so I’m excited. Thanks for the recipe!

  8. Healthy! what a grand idea 🙂

  9. Jaime, I can definitely relate! I never have time to visit blogs like I’d like to lately either (and I’m doing a terrible job keeping up with comments too.) Thanks for stopping by this time. Hope your life calms down!

  10. what a delicious and healthy looking salad! sorry i haven’t been by your blog in a while… life is busy and i don’t get around to many blogs anymore 🙁

  11. Beautiful salad. Marinating the onions is a great idea. I am enjoying all of your healthy recipes.

  12. I love Greek Salad and this one has a nice twist with the marinated onions. Have to try it out soon. Hope you don’t mind having Foodista readers directed to your blog. Just add your choice of widget and you’re all set!

  13. I love the idea of marinating the onions. Now you’ve got me thinking. Thank you!

  14. Beautiful! What an inventive way to add the onions to the salad.

  15. The photo is gorgeous! I’m definitely trying this over the summer. I like the idea of marinating the onions in olive oil and balsamic vinegar.

  16. WOW! Fabulous photos. I love the colors. This salad is a winner!!!

  17. Carole, I think using white balsamic vinegar is a brilliant idea. I had a lovely bottle of it that my step-sister brought me, but I’ve used it all and haven’t had time to search for it here.

  18. Hi Kalyn
    This sounds very interesting and I have printed out for this summer. I think I will make it with the organic WHITE balsamic that I recently bought which is delicious and the onions should stay white in the finished product. Thanks for the inspiration.

  19. Sounds delicious Kalyn! I’m into anything refreshing and simple these days. Perhaps I’m rebelling against the complicated food I normally cook at work. Love vidallia in onions too – haven’t seen them in Paris! Bisous, Ms. Glaze

  20. One of my greek friend had taught me his country style salad ,which similar to your recipe, I enjoy yours too.Nice blog.