Vibrant Roasted Vegetable Lentil Salad

This Roasted Vegetable Lentil Salad is a vibrant, nutrient-packed dish perfect for any meal.

Loaded with fiber-rich lentils, roasted sweet potatoes, cauliflower, and bell peppers, it’s a plant-based protein powerhouse with heart-healthy fats from olive oil and a touch of feta.

Quick, easy, and ideal for meal prep, it’s flavorful, satisfying, and keeps well for several days.

Roasted Vegetable Lentil Salad

Karina Kari
A colorful, satisfying lentil salad with roasted sweet potatoes, cauliflower, and bell peppers, tossed with arugula, feta, and a tangy maple-balsamic dressing.
Perfect for quick lunches, dinners, or meal prep, this fiber-rich, protein-packed salad is both wholesome and flavorful.
Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Course dinner, lunch, Salad, Side Dish
Cuisine American, Plant-based friendly
Servings 6

Equipment

  • 2 baking sheets
  • Parchment paper for lining
  • large saucepan
  • Measuring Cups and Spoons
  • Knife and cutting board
  • Large Mixing Bowl
  • Small bowl or jar (for dressing)
  • colander

Ingredients
  

For the Salad:

  • 1 large sweet potato chopped
  • 2 cups cauliflower florets
  • 1 red bell pepper chopped
  • ½ red onion sliced thick
  • 2 tbsp olive oil
  • Kosher salt to taste
  • Black pepper to taste
  • 1 cup green lentils rinsed
  • 3 cups water or vegetable broth
  • 1 bay leaf
  • 3 cups arugula
  • ½ cup crumbled feta cheese

For the Dressing:

  • ¼ cup olive oil
  • 2 tbsp balsamic vinegar
  • 1 tbsp fresh lemon juice
  • 1 tsp Dijon mustard
  • 1 tsp pure maple syrup
  • 1 clove garlic minced
  • Kosher salt to taste
  • Black pepper to taste

Instructions
 

  • Preheat Oven and Prepare Baking Sheets: Begin by preheating your oven to 400°F (200°C) to ensure it’s hot enough for perfectly roasted vegetables.
    Line two large baking sheets with parchment paper to prevent sticking and make cleanup easier.
    This also helps vegetables roast evenly without burning on the bottom.
  • Chop and Arrange Vegetables: Prepare your vegetables for roasting.
    Chop the sweet potato into bite-sized cubes, break the cauliflower into small florets, slice the red onion into thick wedges, and chop the red bell pepper into medium pieces.
    Place the sweet potato and cauliflower on one baking sheet, spreading them out in a single layer without crowding.
    On the second baking sheet, spread the bell pepper and red onion evenly.
  • Season and Oil Vegetables: Drizzle each tray of vegetables with olive oil, ensuring all pieces are lightly coated.
    Sprinkle generously with kosher salt and freshly ground black pepper to enhance natural flavors.
    Toss gently with your hands or a spatula so every piece is evenly seasoned.
    This step ensures caramelization and rich roasted flavors.
  • Roast Vegetables to Perfection: Place both trays in the preheated oven.
    Roast the bell pepper and onion for 15–18 minutes, turning halfway through to ensure even browning.
    Roast the sweet potato and cauliflower for 23–25 minutes until they are tender inside and lightly charred on the edges.
    Use a fork to test tenderness; the sweet potatoes should yield slightly without being mushy.
  • Prepare Lentils for Salad: While the vegetables roast, cook the lentils.
    In a large saucepan, combine the rinsed lentils with 3 cups of water or vegetable broth and add 1 bay leaf for subtle aromatic flavor.
    Bring the mixture to a boil over medium-high heat, then reduce to low and simmer for 15–20 minutes.
    Lentils should be tender yet hold their shape.
    Avoid overcooking to prevent a mushy texture.
  • Drain and Cool Lentils: Once lentils are cooked, pour them into a colander to drain excess liquid.
    Remove the bay leaf and rinse briefly under cold water to stop the cooking process and cool them slightly.
    This ensures they maintain a pleasant, firm texture for the salad.
  • Make the Maple-Balsamic Dressing: While the lentils and vegetables cook, prepare the dressing.
    In a small bowl or jar, whisk together olive oil, balsamic vinegar, fresh lemon juice, Dijon mustard, pure maple syrup, and minced garlic.
    Season with salt and black pepper to taste.
    Whisk thoroughly until the mixture is smooth and emulsified.
    Taste and adjust seasoning if needed.
  • Combine Salad Ingredients: In a large mixing bowl, add the cooled lentils, roasted sweet potatoes, cauliflower, red bell pepper, and red onion.
    Gently fold in the arugula and sprinkle the crumbled feta cheese evenly over the top.
    Toss all ingredients carefully to ensure even distribution without mashing the vegetables.
  • Dress the Salad: Drizzle the prepared maple-balsamic dressing over the salad.
    Toss gently until all ingredients are lightly coated and flavors meld together.
    Allowing the salad to sit for 20–30 minutes before serving helps the dressing soak into the lentils and roasted vegetables, enhancing overall taste.
  • Serve and Store: Serve immediately as a hearty lunch, side dish, or light dinner.
    If preparing ahead, transfer the salad to an airtight container and refrigerate for up to 4 days.
    The flavors continue to develop over time, making it an excellent meal-prep option.

Notes

  • Use firm, evenly sized vegetables to ensure uniform roasting.
  • Rinse lentils thoroughly to remove any debris or dust.
  • Adjust seasoning gradually—roasted vegetables and feta are naturally flavorful.
  • For extra depth, consider adding a pinch of smoked paprika or fresh herbs like thyme or parsley.
  • This salad is versatile: you can swap vegetables based on seasonality or preference.
  • The dressing can be made ahead and stored in the fridge for up to one week.

Chef’s Secrets: Tips For Perfect Salad

To elevate this salad, balance texture and flavor carefully.

Ensure lentils are cooked just until tender—they should hold their shape to prevent mushiness.

Roast vegetables at high heat to develop caramelized edges, which intensifies natural sweetness.

For an added flavor boost, toss the vegetables with a pinch of smoked paprika or fresh herbs before roasting.

Finally, allow the salad to rest for 20–30 minutes after dressing to let the flavors meld beautifully.

Serving Suggestions: Pairings And Meal Ideas

This salad is wonderfully versatile.

Serve it as a main course for a light, protein-rich lunch, or as a side alongside grilled chicken, fish, or tofu.

Add a slice of crusty whole-grain bread for a complete meal.

For a more vibrant presentation, sprinkle toasted nuts or seeds on top, or drizzle a little extra maple syrup for sweetness.

It also works perfectly chilled, making it ideal for picnic or lunchbox meals.

Storage Tips: Keep Salad Fresh Longer

Store leftover salad in an airtight container in the fridge for up to 4 days.

Keep the dressing separate if you plan to store it longer to maintain vegetable crispness.

Reheat lentils slightly if serving warm, but roasted vegetables taste great even cold.

For longer storage, cooked lentils can be frozen up to 3 months—just thaw and roast vegetables fresh before combining.

Frequently Asked Questions

1. Can I use other lentil varieties?

Yes! Red lentils cook faster and may become softer, while brown or black lentils maintain a firmer texture similar to green lentils. Adjust cooking time accordingly.

2. Can I make this salad vegan?

Absolutely. Simply omit the feta cheese or replace it with a plant-based cheese alternative. The salad remains protein-rich and flavorful.

3. Can I prepare this salad ahead of time?

Yes. Roast the vegetables and cook the lentils in advance, then combine just before serving or store the mixed salad in the fridge. Add dressing shortly before eating for optimal freshness.

4. Can I add extra vegetables?

Definitely! Roasted zucchini, carrots, or cherry tomatoes work well. Just adjust roasting times according to each vegetable’s density to avoid overcooking or undercooking.

5. How should I adjust seasoning for taste?

Taste each component individually before combining. Lentils can be slightly under-seasoned initially because the dressing adds flavor.

Adjust salt, pepper, or lemon juice at the end to ensure a perfectly balanced salad.