Mediterranean-inspired · Easy

Mediterranean Lentil Soup

A hearty, fragrant brown lentil soup simmered with carrots, celery, cumin, and fresh lemon.

Prep
15 mins
Cook
35 mins
Total
50 mins
Servings
6
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A warm bowl of Mediterranean lentil soup garnished with herbs and olive oil

About this recipe

Brown or green lentils hold their shape in this vegetable-rich soup, while a few quick pulses with an immersion blender give the broth more body. Cumin, coriander, and smoked paprika build warmth without overwhelming the lentils; lemon and parsley are added at the end so they stay bright.

Why this method works

  • Cooking onion, carrot, and celery before adding liquid creates a savory base and gives the vegetables time to soften.
  • Brown or green lentils remain distinct after simmering, unlike red lentils, which break down into a smooth puree.
  • Blending only a small portion thickens the broth while leaving most of the lentils and vegetables intact.

Ingredient notes

Brown or green lentils
Pick through and rinse them before cooking. French green lentils may take a little longer than standard brown lentils.
Diced tomatoes
The tomatoes add body and acidity. Keep their juices because they form part of the measured cooking liquid.
Fresh lemon
Add the juice after cooking for a fresher flavor and to make final seasoning easier to judge.

Step-by-step notes

  1. Cut the carrot and celery into similar small pieces so they become tender at the same time.
  2. Keep the pot at a gentle simmer. A hard boil breaks up the lentils and evaporates the broth too quickly.
  3. Before blending, confirm the lentils are fully tender. Pulse briefly so the soup keeps a mix of creamy broth and whole lentils.

Cooking tips

Add the lemon juice at the end so its flavor stays fresh. Lentil age and variety affect cooking time, so use the clock as a guide and simmer until the lentils are tender all the way through.

Make ahead

This soup is well suited to advance preparation because the flavor settles as it rests. Cook it up to 3 days ahead, refrigerate promptly, and add a little broth or water when reheating if it has thickened.

Storage & reheating

Refrigerate in airtight containers within 2 hours for up to 5 days. The soup will thicken as it cools; loosen with a splash of water or broth when reheating to 165°F. Freeze for up to 3 months.

Variations

Stir in 2 cups of fresh baby spinach or chopped kale during the final 3 minutes of cooking until wilted.

Keep cooking

Frequently asked questions

Can I use red lentils instead?

Red lentils break down much faster and turn into a porridge-like puree in about 20 minutes. For a textured broth soup, stick to brown or French green lentils.

Do lentils need to soak first?

No. Brown and green lentils can go straight into the pot after they are picked through and rinsed.

Why did the soup become so thick?

Lentils continue absorbing liquid as the soup rests. Stir in water or broth a little at a time while reheating until the consistency suits you.