Simple Onion Salad
Crisp, refreshing sliced onions tossed with fresh herbs and a bright lemon dressing. This simple side salad comes together in minutes and adds a perfect tangy crunch to burgers, grilled meats, or barbecue spreads.
For 4 servings
- prep · ~3 min
Slice the onions.
Peel the red onions and slice them very thinly into half-moons. Separate the rings with your fingers and place them in a mixing bowl.
TIPSoak the sliced onions in ice water for 10 minutes if you want a milder, less sharp flavor. Drain well before dressing. - mix · ~1 min
Make the dressing.
In a small bowl, whisk together the lemon juice, olive oil, salt, and black pepper until well combined.
- mix · ~1 min
Toss the salad.
Pour the dressing over the sliced onions and toss gently to coat every ring. Sprinkle chopped parsley over the top and give it one final light toss.
- rest · ~5 min
Let the flavors meld.
Let the salad sit at room temperature for 5 minutes. This allows the lemon juice to soften the onions slightly and the flavors to come together.
- serve
Toss once more and serve.
Give the salad a quick toss just before serving to redistribute the dressing. Serve alongside grilled meats, burgers, or barbecue.
What to keep in mind.
6 tips from the recipe — small details that make a real difference to the final dish.
- 1Soak sliced red onions in ice water for 10 minutes to mellow their sharp bite.
- 2Use a mandoline for ultra-thin, even slices that absorb dressing better.
- 3Let the salad rest for exactly 5 minutes — any longer and onions lose their crunch.
- 4Pat soaked onions very dry with a kitchen towel so dressing clings, not slides off.
- 5Toss gently with your hands to coat every ring without bruising the slices.
- 6Make ahead by pre-slicing onions and storing them in water in the fridge up to 24 hours.
Adapt it for your goals.
Herb Garden
Swap parsley for fresh dill, chives, or mint — each herb changes the salad's character (dill goes well with salmon, mint with lamb).
Spicy KickSpicy Kick
Add 1/2 teaspoon of red pepper flakes or a small minced jalapeño to the dressing for heat that cuts through rich meats.
Low OilLow-Oil
Reduce olive oil to 1/2 tablespoon and add 1 tablespoon of water — the lemon juice still provides plenty of flavor with less fat.
Crunchy Add InCrunchy Add-In
Toss in 1/4 cup of toasted pine nuts or sunflower seeds just before serving for extra texture and nutty contrast.
Why this is on our healthy list.
Rich in Quercetin
Red onions are one of the best dietary sources of quercetin, a flavonoid linked to anti-inflammatory and heart-supportive effects.
Good Source of Vitamin C
Fresh lemon juice provides a concentrated dose of vitamin C, which supports immune function and enhances iron absorption.
Heart-Healthy Fats
Extra virgin olive oil supplies monounsaturated fats and polyphenols that are associated with reduced cardiovascular risk.
Low Calorie & Nutrient Dense
This salad is very low in calories but packed with phytonutrients and fiber from onions and fresh herbs.
Frequently asked questions
Yes, but they are sharper. Soak them in ice water for 15 minutes instead of 10 to mellow the bite, and expect a less vibrant color.
