The Costco quinoa salad is a cult favorite for a reason, it’s hearty, tangy, and somehow manages to feel both healthy and satisfying. But the original’s ingredient list runs long, and after a day in the fridge the texture going soggy.
This copycat costco quinoa salad recipe cuts the clutter and focuses on what actually works: fluffy quinoa, earthy lentils, and a sharp vinaigrette that doesn’t drown anything. The trick isn’t the proportions; it’s the prep.
Seed the tomatoes and cucumbers or the salad will weep, chop the kale fine enough that it doesn’t need massaging, and emulsify the dressing until it looks creamy. Get those three things right and you’ve got a salad that outlasts the original without tasting like a compromise.
The first time I made this, the salad turned into a watery mess overnight, with the dressing pooling at the bottom and the quinoa getting mushy.
Pair quinoa and lentils for texture and protein
Quinoa brings light, fluffy grains and a complete protein profile. Lentils add an earthy, tender bite that extends the protein without weighing things down.
Together they mimic the heartiness of the original Costco salad, making it substantial enough for lunch. Each forkful gets the pop of quinoa and the soft heft of lentils, so you never feel like you’re eating just one starch.
Emulsify the vinaigrette to bind everything together
Whisking olive oil, white wine vinegar, lemon juice, and sugar until emulsified creates a dressing that clings evenly to every grain and vegetable. The sugar balances the acidity and tames kale’s bitterness, so the salad tastes bright but not harsh. A well-emulsified vinaigrette coats without pooling at the bottom, letting each ingredient contribute its own texture without being drowned.
Use kale raw, just chop it fine
Kale stays crunchy in this salad because it’s raw and finely chopped. Small pieces prevent the leaves from feeling tough or chewy, so you get a crisp bite without massaging.
The dressing softens the kale just enough as it sits, but the structure holds up for hours. No wilting, no sogginess, just a sturdy green that adds texture instead of fading away.
Seed tomatoes and cucumbers for crunch contrast
Diced red pepper gives sweetness and a bright crunch. Tomato and cucumber bring juicy freshness, but only if you seed them first, otherwise they release water and turn the salad soggy. Now I always seed the tomatoes and cucumbers before dicing, which keeps the salad crisp and the dressing evenly coated.
The contrast between the juicy bits and the chewy grains makes every forkful interesting.
Prep: 15 min · Total: 15 min · Servings: 4 · Calories: 220 kcal
Choose sturdy lentils and crisp veggies
canned lentils: Rinse them well to remove the canning liquid and any metallic taste.
kale: Buy lacinato or curly kale; both hold up raw when chopped fine.
tomato and cucumber: Seed both before dicing to keep the salad from getting watery.
Whisk the vinaigrette until it looks creamy, not separated
Make the dressing
Combine olive oil, vinegar, lemon juice, and sugar in a bowl. Whisk vigorously until the mixture thickens and turns opaque, that’s emulsified. If it still looks streaky, keep whisking; a stable dressing clings to the quinoa instead of pooling.
Add the grains and vegetables
Dump in the cooled quinoa, lentils, diced pepper, seeded tomato and cucumber, chopped kale, and cilantro. Toss with a spatula until every grain is slick with dressing. You should see an even sheen, no dry patches or puddles at the bottom.
Check the seasoning
Taste a forkful. The salad should taste bright from vinegar and lemon, with a hint of sweetness. If it falls flat, add a pinch of salt, it wakes up the flavors without making it salty.
Stop when the ingredients taste lively, not muted.
Costco Quinoa Salad (Copycat Recipe)
Ingredients
- 1/4 cup olive oil
- 1 tablespoon white wine vinegar
- 1 tablespoon lemon juice
- 1 tablespoon sugar
- Salt and pepper to taste
- 2 cups cooked cooled quinoa
- 1 cup canned lentils rinsed and drained
- 1 red pepper seeded and diced
- 1 small tomato seeded and diced
- 1 medium cucumber diced
- 1 cup kale finely chopped
- 2-3 tablespoons freshly chopped cilantro
Instructions
Whisk dressing:
In a large bowl, whisk together olive oil, white wine vinegar, lemon juice, and sugar until emulsified. Season with salt and pepper to taste.Combine salad ingredients:
Add quinoa, lentils, red pepper, tomato, cucumber, kale, and cilantro to the bowl. Toss to mix well. Adjust seasoning with salt and pepper if needed.Serve or chill:
Serve at room temperature or refrigerate until ready to serve.
Storage and Serving
This salad is best served within 30 minutes of mixing, when the vegetables are crunchiest and the dressing is perky. For leftovers, transfer to an airtight container and refrigerate. It keeps well for 2 to 3 days; the quinoa and lentils stay tender, and as long as you seeded the tomatoes and cucumbers, they won’t release water and turn everything soggy.
The kale softens slightly but holds its texture. If the salad seems dry after a day, stir in a teaspoon of olive oil or a squeeze of lemon juice to revive it. Do not freeze the assembled salad the vegetables will weep and the dressing will break.
You can freeze cooked quinoa on its own for up to 3 months, then thaw and use in a fresh batch. Serve leftovers cold or let them sit at room temperature for 10 minutes before eating.
Swap the vegetables, but keep the quinoa and lentils
red pepper: Any bell pepper color works. Or use diced celery for crunch without sweetness.
Color changes the look, not the texture. Celery adds a snappier bite and less sweetness.
cilantro: Flat-leaf parsley, basil, or mint. Use the same volume. Parsley keeps it neutral; basil or mint shift the flavor profile toward Mediterranean or Middle Eastern notes.
kale: Baby spinach, arugula, or finely chopped romaine. No need to chop spinach as fine. Spinach is tender and less crunchy; arugula adds peppery bite.
Romaine stays crisp but won’t hold up as long as kale.
canned lentils: Cooked brown or green lentils from dry. Do not swap red lentils, they turn mushy.
Home-cooked lentils have firmer texture and more earthy flavor. Red lentils disintegrate and ruin the salad’s structure.
Tips
- Rinse canned lentils in a fine mesh strainer under cold water for 30 seconds. This washes away the starchy canning liquid that can make the dressing look cloudy and muddy the salad’s appearance.
- After rinsing, spread the lentils on a paper towel lined plate and pat dry. Removing surface moisture helps the vinaigrette adhere better and prevents the salad from becoming watery.
Frequently Asked Questions
Can I make this salad ahead of time?
Yes, but it’s best within 30 minutes of mixing for maximum crunch. For longer storage, refrigerate in an airtight container, it keeps 2 to 3 days. The kale softens slightly but holds up, and if the salad seems dry after a day, stir in a teaspoon of olive oil or lemon juice.
How long does this salad last in the fridge?
2 to 3 days in an airtight container. As long as you seeded the tomatoes and cucumbers, they won’t release water and turn things soggy. Don’t freeze the assembled salad, vegetables weep and dressing breaks.
Why is my salad watery?
Most likely you skipped seeding the tomatoes and cucumbers. Their seeds and pulp release liquid that thins the dressing and makes everything pooling wet. Next time, halve and scoop out the seeds before dicing.
If the salad is already watery, drain off excess liquid and toss with a little fresh lemon juice and salt to rebalance.
Is this salad served cold or at room temperature?
Either works. The recipe says serve at room temperature or refrigerate until ready. If you refrigerate leftovers, let them sit at room temperature for 10 minutes before eating so the dressing doesn’t taste dull.
How is this different from the Costco version?
This version uses quinoa and lentils for protein instead of the original’s orzo and edamame. The dressing is a simple vinaigrette, not a creamy one, and the kale stays raw and finely chopped for crunch. You control the salt and acidity, so it tastes brighter and less heavy.
