Costco Quinoa Salad Copycat Recipe
This Costco quinoa salad recipe recreates the popular deli-counter salad you’ve probably grabbed on a busy weeknight and immediately wished you could make at home. It comes together in about 30 minutes, uses a handful of pantry staples, and keeps well in the fridge for days.
The version here sticks close to the original: nutty quinoa, crisp vegetables, chickpeas, and a bright lemon-herb dressing that ties it all together without being heavy.
Why I Love This Recipe
The dressing is what keeps me coming back. It’s tangy and a little grassy from the fresh parsley, and it soaks into the quinoa overnight in a way that actually improves the leftovers.
The chickpeas add enough heft that this works as a full lunch rather than a side. Protein and fiber together mean you’re not hungry an hour later.
It’s also forgiving. Swap a vegetable, skip the feta, double the batch — it holds up either way.
Recipe Ingredients
- 1 cup dry quinoa – White or tri-color both work; tri-color gives a slightly chewier texture
- 2 cups water – For cooking the quinoa
- 1 can (15 oz) chickpeas – Drained and rinsed; also called garbanzo beans
- 1 cup cherry tomatoes – Halved; adds brightness and a little sweetness
- 1 English cucumber – Diced; English cucumber has thinner skin so no need to peel
- ½ cup red onion – Finely diced; soak in cold water for 10 minutes if you want a milder bite
- ½ cup roasted red peppers – Jarred is fine; pat dry before chopping so the dressing doesn’t water down
- ⅓ cup crumbled feta cheese – Full-fat block feta crumbled by hand holds up better than pre-crumbled
- ¼ cup fresh flat-leaf parsley – Roughly chopped; curly parsley works but flat-leaf has more flavor
- 3 tbsp olive oil – Extra-virgin for the dressing
- 3 tbsp fresh lemon juice – About 1½ lemons; bottled lemon juice won’t give you the same brightness
- 1 tsp lemon zest – Zest before you juice
- 1 tsp red wine vinegar – Adds a subtle sharpness that rounds out the lemon
- 1 tsp Dijon mustard – Acts as an emulsifier so the dressing doesn’t separate
- 1 small garlic clove – Minced or grated on a microplane
- ½ tsp salt – Plus more to taste
- ¼ tsp black pepper – Freshly ground
Variations / Substitutions
- Swap feta for avocado – Makes the salad dairy-free and adds creaminess, though it won’t hold as long in the fridge.
- Use canned white beans instead of chickpeas – The texture is softer and the flavor is milder, but the protein is still there.
- Add baby spinach or arugula – Stir in a couple of handfuls right before serving for extra greens; skip if you’re making this ahead.
- Swap lemon juice for lime juice – Gives the dressing a slightly different edge that works well if you add a pinch of cumin.
- Add roasted corn – Frozen corn thawed and tossed in a dry skillet for 3 to 4 minutes until lightly charred adds a smoky sweetness.
- Skip the Dijon for a milder dressing – The dressing will be thinner and less tangy, so shake it well before pouring.
If you enjoy grain salads like this one, you might also like a Costco Edamame Salad copycat recipe.
How To Make Costco Quinoa Salad
Step 1: Rinse and Simmer the Quinoa
Rinse the 1 cup dry quinoa in a fine-mesh strainer under cold water for about 30 seconds. This removes the natural coating called saponin, which can make the quinoa taste bitter. Add the rinsed quinoa and the 2 cups water to a medium saucepan, bring to a boil over high heat, then reduce to a low simmer, cover, and cook for 15 minutes.
After 15 minutes, take the pan off the heat and let it sit, still covered, for 5 minutes. Then fluff with a fork and spread the quinoa out on a sheet pan or large plate to cool faster. You want it closer to room temperature before it goes into the salad, so it doesn’t wilt the vegetables.
Step 2: Whisk the Dressing
While the quinoa cools, combine the 3 tbsp olive oil, 3 tbsp fresh lemon juice, 1 tsp lemon zest, 1 tsp red wine vinegar, 1 tsp Dijon mustard, 1 minced garlic clove, ½ tsp salt, and ¼ tsp black pepper in a small bowl or jar. Whisk or shake until the dressing looks uniform and slightly thickened, about 30 seconds.
Taste it on its own before adding it to the salad. It should be bright and a little sharp. If it tastes flat, add a small pinch of salt and another squeeze of lemon.
Step 3: Chop and Combine the Vegetables
Add the drained and rinsed chickpeas, halved cherry tomatoes, diced cucumber, ½ cup finely diced red onion, and chopped roasted red peppers to a large bowl. Toss them together so everything is roughly evenly distributed. Once the quinoa has cooled to at least room temperature, add it to the bowl as well.
Pour the dressing over everything and toss well so every grain gets coated. The salad will look glossy and the vegetables should hold their shape rather than slump.
Step 4: Fold In the Feta and Plate the Salad
Add the ⅓ cup crumbled feta cheese and ¼ cup roughly chopped fresh parsley to the bowl. Fold them in gently rather than tossing hard, so the feta stays in visible crumbles rather than disappearing into the salad. Give it one final taste and adjust salt if needed.
Transfer to a wide serving bowl or platter, scatter a few extra crumbles of feta over the top, and finish with a small handful of parsley leaves and a drizzle of olive oil.
Recipe Tips
- Cool the quinoa completely before mixing. Warm quinoa will steam the vegetables and make them go soft. Spreading it on a sheet pan instead of leaving it in the pot cuts the cooling time down to about 10 minutes.
- Pat the roasted red peppers dry. Jarred peppers sit in liquid. If you skip this step, the dressing gets watery and the salad can end up sitting in a small pool by the next day.
- Finely dice the red onion. Chunky pieces of raw onion overpower every other flavor. Small pieces distribute evenly and you get a little heat in every bite without any single forkful tasting like onion soup.
- Make it a few hours ahead. This salad genuinely improves after an hour or two in the fridge. The dressing soaks into the quinoa and the flavors come together more than they do when it’s freshly made.
Bake times by quinoa-to-water ratio don’t apply here, but here’s a quick scaling guide if you need to make a bigger batch:
| Quinoa (dry) | Water | Dressing (olive oil / lemon juice) | Serves |
|---|---|---|---|
| 1 cup | 2 cups | 3 tbsp / 3 tbsp | 4 |
| 1½ cups | 3 cups | 4½ tbsp / 4½ tbsp | 6 |
| 2 cups | 4 cups | 6 tbsp / 6 tbsp | 8 |
How To Store
- Refrigerate – Store in an airtight container for up to 4 days. The vegetables stay crisp and the quinoa absorbs more dressing the longer it sits, which most people find makes it better.
- Serve Cold – This salad is meant to be eaten cold or at room temperature straight from the fridge. No reheating needed.
What To Serve With Costco Quinoa Salad
Grilled chicken breast is the most natural pairing — the lemon dressing acts almost as a sauce for the chicken, and the protein makes it a proper dinner rather than a side. Warm pita bread with hummus alongside it also works well, since the soft bread contrasts the chew of the quinoa. If you want to serve this at a gathering, it sits next to a simple roasted salmon fillet without either dish competing for attention, since both lean on lemon and herbs.
Frequently Asked Questions
Can I make this salad the night before?
Yes, and it’s actually better the next day. The dressing soaks into the quinoa overnight and the flavors come together more fully than when it’s freshly made.
Does this freeze well?
No. The cucumber and tomatoes turn watery and mushy once frozen and thawed. Stick to refrigerating it.
Can I use pre-cooked or microwaveable quinoa pouches?
Yes. Use about 2½ cups of cooked quinoa to replace the 1 cup dry. Just spread it out to cool before adding it to the bowl.
How do I keep the salad from getting watery by day 2?
The main culprit is usually undried roasted peppers or tomatoes that have been cut too far in advance. Patting the peppers dry before chopping and assembling the salad no more than a few hours before serving keeps it from pooling.
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Ingredients
Method
- Rinse the quinoa under cold water for 30 seconds, then combine with 2 cups water in a saucepan. Bring to a boil, reduce to low, cover, and simmer for 15 minutes. Remove from heat, rest covered for 5 minutes, then fluff and spread on a sheet pan to cool.
- Whisk together the olive oil, lemon juice, lemon zest, red wine vinegar, Dijon mustard, garlic, salt, and black pepper in a small bowl until uniform and slightly thickened, about 30 seconds.
- Add the chickpeas, cherry tomatoes, cucumber, red onion, and roasted red peppers to a large bowl. Add the cooled quinoa and pour the dressing over everything. Toss well until fully coated.
- Fold in the feta and parsley gently, transfer to a serving bowl, and finish with extra feta crumbles, a few parsley leaves, and a drizzle of olive oil.
