Lentil and Quinoa Salad with Cucumber and Lemon Dressing

Lentil and quinoa salad with cucumber and lemon dressing is a bright, satisfying bowl built from simple pantry staples and fresh vegetables. Tender lentils give it a hearty base, fluffy quinoa keeps it light, and diced cucumber adds cool crunch. Red onion and parsley bring sharpness and color, while a lemon and Dijon dressing ties everything together. It works for lunch, as a light dinner, or as a make-ahead side.

RECIPE CARD

Lentil and Quinoa Salad with Cucumber and Lemon Dressing

Prep

15 min

Cook

25 min

Total

40 min

Yield

4 servings

Ingredients

• 1 cup cooked green or brown lentils
• 1 cup cooked quinoa
• 1 cucumber, diced
• 1/4 cup red onion, finely chopped
• 1/4 cup fresh parsley, chopped
• 1 tablespoon olive oil
• 2 tablespoons freshly squeezed lemon juice
• 1 teaspoon finely grated lemon zest
• 1 teaspoon Dijon mustard
• 1/2 teaspoon garlic powder
• Salt and freshly ground black pepper, to taste
• 1 tablespoon sunflower seeds or chia seeds, optional, for crunch

Quick Method

Condensed overview. Use Full Instructions for the complete method, timing and doneness details.

1. Cook and cool the lentils and quinoa: Cook the lentils and quinoa separately according to their package instructions until tender. Drain the lentils well; if the quinoa has extra water, drain…
2. Prepare the vegetables and parsley: Dice the cucumber into small, fairly even cubes. Finely chop the red onion, then roughly chop the parsley leaves and tender stems. Keeping the…
3. Whisk the lemon dressing: In a small bowl or jar, combine the olive oil, lemon juice, lemon zest, Dijon mustard, and garlic powder. Add a pinch of salt…
4. Combine the salad base: Place the cooled lentils and quinoa in a large mixing bowl. Add the cucumber, red onion, and parsley. Toss gently with two large spoons…
5. Dress and toss gently: Pour the lemon dressing evenly over the salad, then lift and turn the mixture until the lentils, quinoa, and vegetables are lightly coated. Taste…
6. Add crunch and serve: Spoon the salad into a serving bowl or individual dishes. Sprinkle sunflower seeds, or the optional chia seeds, over the top just before eating.…

Full Instructions ↓ Print Recipe

Start with cooked lentils and quinoa that have cooled to room temperature. Warm grains can soften the cucumber and absorb the dressing too quickly, so let them cool and drain away excess water first. Chop the vegetables while the grains cool, whisk the dressing separately, then combine everything gently. Add the optional sunflower seeds only when serving so they stay crisp. The salad is pleasant immediately, and a short chill lets its flavors settle together.

Why You’ll Love It

• Contrasting textures: Soft lentils and quinoa meet crisp cucumber and sunflower seeds.
• Fresh lemon flavor: Juice, zest, and parsley lift the earthy grains.
• Easy preparation: Cook the grains ahead and finish the salad when needed.

Ingredients

• 1 cup cooked green or brown lentils
• 1 cup cooked quinoa
• 1 cucumber, diced
• 1/4 cup red onion, finely chopped
• 1/4 cup fresh parsley, chopped
• 1 tablespoon olive oil
• 2 tablespoons freshly squeezed lemon juice
• 1 teaspoon finely grated lemon zest
• 1 teaspoon Dijon mustard
• 1/2 teaspoon garlic powder
• Salt and freshly ground black pepper, to taste
• 1 tablespoon sunflower seeds or chia seeds, optional, for crunch

Green or brown lentils hold their shape better than red lentils, making them a good choice for this salad. Rinse quinoa before cooking if the package calls for it, then fluff it with a fork and cool it. A firm cucumber is easiest to dice into even pieces; leave the skin on for color. Chop the red onion finely so no single bite is overly sharp. Use a fresh lemon for both zest and juice, zesting before you squeeze. Sunflower seeds give a more distinct crunch, while chia seeds are a smaller alternative.

Step-by-Step Instructions

Step 1: Cook and cool the lentils and quinoa

Cook the lentils and quinoa separately according to their package instructions until tender. Drain the lentils well; if the quinoa has extra water, drain that too and fluff it with a fork. Measure one cup of each after cooking. Spread them in separate shallow bowls to cool to room temperature before assembling the salad. This prevents the cucumber from turning limp and keeps the parsley fresh. You can prepare both a day ahead and refrigerate them in covered containers. If using refrigerated cooked grains, break up any quinoa clumps with a fork first.

Step 2: Prepare the vegetables and parsley

Dice the cucumber into small, fairly even cubes. Finely chop the red onion, then roughly chop the parsley leaves and tender stems. Keeping the cucumber pieces similar in size helps each spoonful contain some of every ingredient. If the cucumber is very wet, pat the diced pieces gently with a towel before mixing. Taste a small piece of onion; if it is unusually strong, rinse the chopped onion briefly under cold water and drain it thoroughly. Set all three prepared ingredients aside while you make the dressing.

Step 3: Whisk the lemon dressing

In a small bowl or jar, combine the olive oil, lemon juice, lemon zest, Dijon mustard, and garlic powder. Add a pinch of salt and a few grinds of black pepper. Whisk until the mustard helps the oil and lemon juice come together into a lightly thickened dressing. Taste it now, before it meets the grains; add a little more salt or pepper if needed. The dressing should taste bright and slightly tangy because the lentils and quinoa will soften its sharpness. If using a jar, close it tightly and shake well instead of whisking.

Step 4: Combine the salad base

Place the cooled lentils and quinoa in a large mixing bowl. Add the cucumber, red onion, and parsley. Toss gently with two large spoons until the ingredients are distributed evenly. Avoid pressing down on the lentils, especially if they are very tender, so the salad remains distinct rather than becoming pasty. At this stage it should still look relatively dry; the dressing comes next. If you notice any water collecting in the bottom of the bowl, tip it away before adding the dressing so the final flavor stays concentrated.

Step 5: Dress and toss gently

Pour the lemon dressing evenly over the salad, then lift and turn the mixture until the lentils, quinoa, and vegetables are lightly coated. Taste a spoonful that contains each component and adjust the salt, pepper, or lemon if necessary. The grains will absorb some dressing as they rest, so the salad can look a touch glossier now than it will later. If serving immediately, move on to the final garnish. For a colder salad, cover and refrigerate for 20 to 30 minutes, then toss once more before serving.

Step 6: Add crunch and serve

Spoon the salad into a serving bowl or individual dishes. Sprinkle sunflower seeds, or the optional chia seeds, over the top just before eating. This keeps the topping crisp and gives the finished bowl a clear contrast to the tender grains. Add a few parsley leaves and a lemon wedge if you have them. Serve chilled or at room temperature. If the salad was made ahead and seems dry, refresh it with a small squeeze of lemon and a few drops of olive oil rather than pouring on a full second batch of dressing.

Substitutions & Variations

Use canned lentils for convenience, rinsing and draining them thoroughly before measuring. Brown rice can replace quinoa, though the result will be chewier and need a little more dressing. Diced bell pepper, spinach, or a handful of cherry tomatoes can add color, but keep the cucumber as the main crisp element. For a heartier meal, fold in chickpeas or cooked tofu after dressing. This salad is naturally plant-based when made with the listed ingredients; check packaged mustard if you follow a strict dietary preference.

What to Serve With

The salad is filling enough for a simple lunch and pairs well with a warm vegetable dish. Our garlic lemon roasted cauliflower steaks echo its citrus flavor while adding a roasted contrast. For a lighter spread, serve a smaller portion beside zucchini noodles with garlic, lemon, and Parmesan. Prepare the hot dish last and keep the salad covered in the refrigerator until serving time.

Frequently Asked Questions

Can I use canned lentils?

Yes. Rinse them under cool water and drain well, then measure one cup. Look for green or brown lentils that still hold their shape. Very soft lentils can break apart during tossing, so fold them in gently after the quinoa and vegetables are mixed.

How long does the salad keep?

Store it in a covered container in the refrigerator for two to three days. For the best cucumber texture, keep the dressing and seeds separate until serving when making it far ahead. If already dressed, give it a gentle toss and taste before serving because the grains absorb lemon over time.

Should the lentils and quinoa be warm?

Cool both to room temperature before combining them with the fresh vegetables. Warm grains can soften the cucumber and wilt the parsley. If cooked in advance, chilled grains work too; loosen the quinoa with a fork and drain any condensation before adding the dressing.