Lentil Salad with Mustard

Featured in: Everyday Bowl Meals

This colorful lentil salad combines tender lentils with juicy cherry tomatoes, crisp cucumber, red onion, and fresh parsley. A tangy mustard vinaigrette with olive oil, red wine vinegar, and a touch of honey enhances the flavors. The lentils are simmered until just tender, then cooled before mixing. Chill the salad to allow flavors to blend beautifully, serving it cold or at room temperature. Ideal for a light lunch or as a refreshing side, it's packed with fiber and protein, perfect for vegetarian and gluten-free diets.

Updated on Thu, 25 Dec 2025 10:57:00 GMT
Vibrant lentil salad with juicy tomatoes and crisp cucumber, tossed in a tangy vinaigrette. Save to Pinterest
Vibrant lentil salad with juicy tomatoes and crisp cucumber, tossed in a tangy vinaigrette. | bowlnotch.com

The first time I made this lentil salad was during a sweltering July when turning on the oven felt like a personal betrayal. My kitchen ceiling fan did its best but honestly nothing sounded worse than standing over a hot stove for an hour. A friend had mentioned something about lentils being perfect for summer and I was desperate enough to try anything that didnt involve heat exhaustion. The texture surprised me how satisfying it felt without being heavy like pasta salads often become. Now its the dish I make when I want something substantial but still fresh enough for warm weather.

I brought this to a neighborhood picnic last summer expecting it to be the sensible boring option next to all the potato salads and coleslaws. By the end of the gathering my bowl was empty and three people had asked for the recipe. One neighbor admitted she normally hates lentils but kept going back for seconds. Something about the sharp mustard vinaigrette cutting through the earthiness just works. Now whenever someone says they need something healthy that people will actually eat I send them this recipe.

Ingredients

  • Dried green or brown lentils: Green lentils hold their shape better than red ones which can turn mushy. Brown lentils work perfectly fine too and cook a bit faster. Avoid red lentils here unless you want something closer to a dip than a salad.
  • Bay leaf: Such a small thing but it adds a subtle herbal depth while the lentils cook. I forgot it once and the lentils tasted fine but somehow less complete.
  • Cherry tomatoes: They stay firm longer than chopped beefsteak tomatoes and burst when you bite them. If theyre large give them a quick halving but the tiny ones can go in whole.
  • Red wine vinegar: The acidity here cuts through the earthy lentils and balances the vegetables. Apple cider vinegar works in a pinch but the flavor profile shifts slightly sweeter.
  • Dijon mustard: This is what makes the vinaigrette actually stick to the lentils instead of pooling at the bottom. Whole grain mustard adds nice texture if you prefer visible seeds.

Instructions

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Cook the lentils until tender:
Combine lentils water bay leaf and salt in a saucepan over high heat. When it reaches a boil lower to a gentle simmer and let cook uncovered for 20 to 25 minutes. You want them tender but still holding their shape not falling apart. Drain well and let cool completely before mixing with the vegetables.
Prep the vegetables while lentils cook:
Halve the cherry tomatoes dice the cucumber into small pieces and finely chop the red onion. The smaller you cut everything the more flavors distribute evenly through each bite. Toss them in your large bowl so theyre ready when the lentils are done.
Whisk together the vinaigrette:
Combine olive oil red wine vinegar Dijon mustard honey minced garlic salt and pepper in a small bowl. Whisk vigorously until the mixture thickens slightly and looks glossy. This usually takes about 30 seconds of enthusiastic whisking.
Combine everything:
Add the cooled lentils to the bowl with the vegetables and pour the vinaigrette over top. Fold everything together gently so you dont crush the lentils or tomatoes. Taste and add more salt or pepper if it needs brightness.
Let the flavors hang out:
The salad is edible right away but letting it rest for 15 to 30 minutes in the refrigerator makes a huge difference. The lentils absorb some of the dressing and the onion mellows out. Serve cold or at room temperature whichever you prefer.
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Crisp vegetables, roast meats, bake snacks, and reheat leftovers quickly for easy, flavorful home cooking.
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A colorful bowl of lentil salad, brimming with fresh ingredients and a zesty dressing. Save to Pinterest
A colorful bowl of lentil salad, brimming with fresh ingredients and a zesty dressing. | bowlnotch.com

My partner who grew up eating lentils almost exclusively in soups was skeptical when I first served this as a main dish. He took a polite试探性 bite then immediately went back for a full serving. Now he requests it specifically when we need something that will last in the fridge for several days. Its become the default lunch for busy weeks when cooking every day feels impossible.

Make It Yours

The vegetables here are flexible based on what you have or what looks good at the market. I swap in diced bell peppers when theyre in season or add shredded carrots for extra sweetness. Once I added roasted sweet potato cubes which turned it into more of a fall salad and honestly worked beautifully. The only constant is the vinaigrette ratio and the lentils themselves.

Serving Suggestions

This works as a side alongside grilled fish or chicken but I often eat it straight from the bowl as a complete lunch. The protein and fiber keep me satisfied for hours which I cant say for most salads. Sometimes I top it with a soft boiled egg or some avocado if I want something extra substantial.

Storage and Meal Prep

The salad keeps well in the refrigerator for 4 to 5 days though the texture softens slightly each day. I pack the dressing separately if Im meal prepping more than 2 days ahead then toss it right before eating. The flavors actually improve after a day so this is one of those rare dishes that works better made ahead.

  • Use a glass container if possible since the vinaigrette can react with plastic over time
  • Bring it to room temperature for 15 minutes before serving if its been chilled for days
  • Add fresh herbs right before serving since they wilt in the fridge
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Hearty lentil salad with tender lentils and a delicious vinaigrette, perfect for a healthy meal. Save to Pinterest
Hearty lentil salad with tender lentils and a delicious vinaigrette, perfect for a healthy meal. | bowlnotch.com

This is the recipe that proved healthy food doesnt have to feel like penance. Make it once and youll understand why it earned a permanent spot in my regular rotation.

Lentil Salad with Mustard

Vibrant lentils tossed with juicy tomatoes, cucumber, and mustard vinaigrette for a fresh, nourishing dish.

Prep Time
15 minutes
Cook Time
25 minutes
Overall Time
40 minutes
By Bowl Notch Brooke Moore

Recipe Group Everyday Bowl Meals

Level Easy

Cuisine Type International

Amount Made 4 Number of Servings

Dietary Details Vegetarian, No Dairy, Free from Gluten

What You Need

Lentils

01 1 cup dried green or brown lentils, rinsed
02 3 cups water
03 1 bay leaf
04 1/2 teaspoon salt

Vegetables

01 1 cup cherry tomatoes, halved
02 1 cup cucumber, diced
03 1/4 cup red onion, finely chopped
04 1/4 cup fresh parsley, chopped

Mustard Vinaigrette

01 3 tablespoons extra virgin olive oil
02 1 1/2 tablespoons red wine vinegar
03 1 teaspoon Dijon mustard
04 1 teaspoon honey or maple syrup (optional)
05 1 small garlic clove, minced
06 1/4 teaspoon salt
07 1/4 teaspoon black pepper

Directions

Step 01

Cook lentils: Place lentils, water, bay leaf, and salt in a saucepan. Bring to a boil, then reduce heat and simmer uncovered for 20 to 25 minutes until lentils are tender but not mushy. Drain and discard bay leaf. Allow to cool to room temperature.

Step 02

Combine vegetables and lentils: In a large bowl, mix together cooked lentils, cherry tomatoes, cucumber, red onion, and parsley.

Step 03

Prepare vinaigrette: Whisk olive oil, red wine vinegar, Dijon mustard, honey or maple syrup if using, minced garlic, salt, and black pepper in a small bowl or jar until emulsified.

Step 04

Dress salad: Pour vinaigrette over the lentil and vegetable mixture and toss gently to combine. Adjust seasoning as desired.

Step 05

Chill and serve: Refrigerate the salad for 15 to 30 minutes for optimal flavor. Serve cold or at room temperature.

What You'll Need

  • Saucepan
  • Colander
  • Large mixing bowl
  • Small bowl or jar
  • Whisk
  • Cutting board and knife

Allergy Info

Double-check each ingredient for allergens, and contact your healthcare provider with concerns.
  • Contains mustard.
  • Gluten-free and dairy-free in the original recipe.
  • Contains milk if cheese is added.
  • Check ingredient labels for hidden allergens.

Nutrition Info (per serving)

Use these details for reference only—always talk to a doctor for health advice.
  • Calorie Count: 240
  • Fats: 8 g
  • Carbohydrates: 32 g
  • Proteins: 10 g