Roasted Beet, Lentil, and Walnut Salad Recipe

What Is Roasted Beet, Lentil, and Walnut Salad?

This is a main dish salad built on roasted beet wedges, French green lentils, and toasted walnuts. The beets roast in a hot oven until the edges caramelize, and the lentils cook alongside them so everything finishes at the same time. A red wine vinegar and Dijon dressing keeps it savory rather than sweet, which makes it a solid lunch or dinner on its own.

What Makes This Recipe Anti-Inflammatory?

Beets get their deep red color from betalains, including betanin. These pigments act as antioxidants and help the body handle oxidative stress, a driver of chronic inflammation.

Walnuts bring alpha-linolenic acid, the plant-based omega-3 fatty acid, and extra-virgin olive oil adds oleocanthal, a compound studied for its effect on inflammatory pathways. The French green lentils contribute fiber and polyphenols, plus the plant protein that turns this salad into a full meal. The recipe contains no refined flour, no added sugar, and no refined seed oils.

Ingredients

• 1 1/2 pounds beets (about 4 medium), scrubbed and cut into 3/4-inch wedges
• 3 tablespoons extra-virgin olive oil, divided
• 1/2 teaspoon fine sea salt, divided
• 1 cup dried French green lentils, rinsed
• 3 cups water
• 1/2 cup walnut halves, roughly chopped
• 3 cups baby arugula
• 1/4 cup thinly sliced red onion
• 2 tablespoons red wine vinegar
• 1 teaspoon Dijon mustard
• 1 teaspoon fresh thyme leaves
• 1/4 teaspoon black pepper

Directions

Step 1

Preheat the oven to 425°F. Toss the beet wedges with 2 tablespoons of the olive oil and 1/4 teaspoon of the salt, spread them on a sheet pan in one layer, and roast for about 40 minutes, flipping them halfway through. They are done when the edges caramelize and a knife slides in without resistance.

Step 2

While the beets roast, combine the lentils and the water in a saucepan and bring it to a boil. Lower the heat to a gentle simmer and cook for 25 minutes, until the lentils are tender but still hold their shape. Drain them and leave them unseasoned until Step 5.

Step 3

Toast the walnuts in a dry skillet over medium heat for a few minutes, stirring often. They are ready when they smell nutty and darken slightly, so watch them closely because they burn fast.

Step 4

Whisk the remaining 1 tablespoon of olive oil with the red wine vinegar, Dijon mustard, thyme, the remaining 1/4 teaspoon of salt, and the black pepper in a small bowl. The dressing is ready when it looks uniform and slightly thickened.

Step 5

Toss the warm lentils with the red onion and half of the dressing. The warm lentils absorb the dressing, and its acidity softens the sharp edge of the onion.

Step 6

Spread the arugula over a serving platter or toss it through the lentils. Spoon the dressed lentils on top, arrange the roasted beets over them, scatter the toasted walnuts on last, and drizzle with the remaining dressing. Adding the beets at the end keeps them from tinting the whole dish pink.

Nutrition Facts (per serving)

InflammaScore

1 Good! Very low inflammation potential

Q&A

Q1: Can I substitute another lentil variety?
A1: French green lentils hold their shape best, which matters in a salad. If you cannot find them, use regular green or brown lentils and check them a few minutes early. Red or yellow lentils fall apart during cooking and will turn the salad mushy, so skip those.

Q2: How do I store leftovers?
A2: Keep the components in airtight containers in the refrigerator for up to 4 days. The dressed lentils taste even better the next day. Store the walnuts at room temperature in a sealed jar so they stay crisp, and add them just before serving.

Q3: Why did my beets not caramelize?
A3: The most common cause is crowding. When too many wedges share the pan, they release steam and soften instead of roasting. Use a large sheet pan, keep the wedges in a single layer with space between them, and make sure the oven is fully at 425°F before the pan goes in.

Q4: Can I prepare this salad ahead of time?
A4: Yes. Roast the beets, cook the lentils, and make the dressing up to 2 days ahead, then refrigerate them separately. Assemble with the arugula, onion, and walnuts shortly before serving so the greens stay crisp and the nuts keep their crunch.

Q5: Who is this salad a good fit for?
A5: It works well for anyone eating more plant-based meals, since lentils and walnuts supply protein, fiber, and healthy fats in one bowl. It is also naturally gluten-free and vegan, and it holds up well packed for lunch, which makes it practical for workdays.

Leftover dressed lentils taste even better the next day, so this salad works as well for meal prep as it does for dinner.