Caramelized Onion and Feta Salad

Name: Caramelized Onion and Feta Salad
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 2 large red onions, sliced; 2 tablespoons olive oil; 1 teaspoon salt; 1 teaspoon sugar; 6 cups mixed greens (arugula, spinach, and romaine); Feta cheese, crumbled (about 1 cup); Balsamic vinegar to drizzle

Highlighted under: Light & Fresh Recipes

I absolutely love this Caramelized Onion and Feta Salad! The sweetness of the caramelized onions paired with the tangy feta creates a beautiful contrast that dances on the palate. I often serve it as a light lunch or as a side dish during dinner parties. The best part is how easy it is to prepare. With just a few ingredients and a little patience while the onions caramelize, you end up with a dish that feels gourmet without all the fuss. Trust me, your taste buds will thank you!

Created by

Anna Johnson

Last updated on 2026-01-08T10:54:57.587Z

When I first tried this salad, I was amazed at how the simple concept of caramelizing onions could elevate lettuce to a whole new level. I spent some time experimenting with different ingredients and found that adding a sprinkle of balsamic vinegar right at the end really brings the entire dish together. You can either serve it warm or at room temperature, both of which are delightful experiences.

Another tip I learned is to slice the onions evenly, as it ensures they caramelize uniformly. I love using red onions for their vibrant color and natural sweetness, but feel free to experiment with whatever you have on hand. You’ll be surprised at how versatile this salad can be!

        Why You'll Love This Salad
        The rich sweetness of caramelized onions perfectly complements the salty feta.
It’s a nutritious dish that’s quick to throw together, yet impressive enough for guests.
A delightful mix of textures, with the crunch of greens and the creaminess of cheese.

      

Understanding Caramelization

Caramelizing onions is a transformative cooking technique that enhances flavor complexity. The process involves cooking onions slowly over medium heat, allowing their natural sugars to break down and develop a rich, sweet flavor. This can take anywhere from 25 to 30 minutes. It's important to stir occasionally to ensure even cooking and to prevent any burning, which can introduce an undesirable bitter taste. You’ll know the onions are ready when they turn a deep golden brown and become soft and glossy.

If you're short on time but still want to enjoy caramelized onions, consider using a mixture of yellow and red onions. The yellow onions will caramelize faster due to their higher sugar content, while the red onions add a vibrant color and a slightly sharper flavor. You can also cook them in batches; simply store the extras in an airtight container in the refrigerator for up to a week.

Choosing the Right Greens

The choice of mixed greens plays a crucial role in balancing the flavors of this salad. Unlike heavier greens, arugula, spinach, and romaine are lighter and provide a crisp texture that contrasts beautifully with the creamy feta and sweet onions. For added crunch, you might consider tossing in some shredded carrots or thinly sliced radishes. These not only enhance the visual appeal but also add extra nutrition and flavor without overwhelming the main ingredients.

If you're looking for a lighter option, you can swap in baby kale or watercress for the mixed greens. These options are not only nutrient-dense but also offer a slightly peppery flavor that pairs wonderfully with the sweetness of the caramelized onions. Remember to wash and dry your greens thoroughly to prevent excess moisture, which can dilute the dressing's flavor.

Serving Suggestions

This Caramelized Onion and Feta Salad can serve as a standalone dish or a delightful side. For a heartier meal, try adding grilled chicken or chickpeas for protein. The salad's versatility means it can easily complement roasted meats or be served alongside a variety of Mediterranean dishes. Don’t hesitate to experiment with additional toppings like toasted nuts or seeds to introduce a satisfying crunch.

For presentation, consider serving the salad in a large, shallow bowl. Arrange the mixed greens first, then artfully pile the caramelized onions and sprinkle the feta on top. Finish with a generous drizzle of balsamic vinegar just before serving for an extra pop of flavor. This not only makes for an appealing look but also allows guests to mix the ingredients to their liking.

Ingredients

Gather the following ingredients:

Salad Ingredients

2 large red onions, sliced
2 tablespoons olive oil
1 teaspoon salt
1 teaspoon sugar
6 cups mixed greens (arugula, spinach, and romaine)
Feta cheese, crumbled (about 1 cup)
Balsamic vinegar to drizzle

Make sure to use fresh ingredients for the best flavor.

Instructions

Follow these steps to create your salad:

Caramelize the Onions

In a large skillet, heat the olive oil over medium heat. Add the sliced onions, salt, and sugar. Stir occasionally for about 25-30 minutes until the onions are golden and caramelized.

Keep an eye on the heat to prevent them from burning.

Assemble the Salad

In a large bowl, combine the mixed greens and top with the caramelized onions. Sprinkle the crumbled feta on top and drizzle with balsamic vinegar before serving.

Serve immediately while the onions are warm!

Pro Tips

For a delightful twist, try adding toasted walnuts or cranberries for extra texture and flavor.

Storage and Preparation Tips

To prepare the salad in advance, store the caramelized onions separately in an airtight container in the refrigerator for up to five days. This not only saves you time but also allows the flavors to meld further, enhancing the dish. When you’re ready to serve, simply reheat the onions in a pan over low heat until warm before assembling your salad.

If you have leftovers, keep the components separate to maintain freshness. Store the greens and feta in the refrigerator for up to three days. For best results, avoid mixing the balsamic vinegar into the salad until just before serving to prevent the greens from wilting.

Variations to Try

Feel free to customize this salad based on your preferences or what's in season. For a Mediterranean twist, add some olives or sun-dried tomatoes which will contribute additional flavors and textures. If you prefer a bit of sweetness, come fall, consider incorporating sliced apples or pears along with the onions for a seasonal touch that pairs wonderfully with feta.

To switch up the cheese, goat cheese could serve as a delightful alternative to feta, offering a tangy contrast that pairs well with the caramelized onions. Finally, consider turning this salad into a warm dish. Simply serve it immediately after turning the greens lightly wilted with the warm onions and add a drizzle of olive oil for richness.

Questions About Recipes

→ Can I make the caramelized onions ahead of time?

Yes, you can caramelize the onions and store them in the refrigerator for up to 3 days. Just reheat them gently before assembling the salad.

→ What types of greens work best for this salad?

We recommend a mix of arugula, spinach, and romaine for a variety of textures and flavors, but feel free to use your favorites!

→ Can I use another type of cheese instead of feta?

Absolutely! Goat cheese or blue cheese are excellent alternatives that pair well with the caramelized onions.

→ Is it possible to make this salad vegan?

Yes! Simply omit the feta cheese or substitute it with a vegan cheese alternative.