Pantry soup

Lentil Vegetable Soup

Brown lentils simmered with onion, carrot, celery, and tomatoes until the soup is thick.

Soups · 15 min prep · 35 min cook · Easy
A bowl of chopped vegetables, greens, and avocado

Brown lentils hold their shape better than red lentils and do not need a soak. Rinse them and pick out any small stones before they go into the pot.

Prep15 min
Cook35 min
Servings6
DifficultyEasy

Ingredients

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  • 1 tbsp olive oil
  • 1 onion, diced
  • 2 carrots, diced
  • 2 celery stalks, diced
  • 3 cloves garlic, minced
  • 1 1/2 cups brown lentils, rinsed
  • 1 can (15 oz) diced tomatoes
  • 6 cups low-sodium vegetable broth
  • 1 tsp ground cumin
  • 1 bay leaf
  • 1 tsp salt
  • 2 tbsp chopped parsley
  • 1 tbsp lemon juice

How to make it

  1. Heat the oil in a pot over medium heat. Cook the onion, carrots, and celery for 6 minutes.
  2. Add the garlic and cumin and stir for 30 seconds.
  3. Add the lentils, tomatoes, broth, bay leaf, and salt.
  4. Bring to a boil, then simmer partly covered for 30 to 35 minutes, until the lentils are tender.
  5. Remove the bay leaf. Stir in the parsley and lemon juice. Add water if the soup is thicker than you want.
Kitchen note

Lentils from an older package can take longer. Add broth and keep simmering until they are tender, not crunchy.

Substitutions

  • Green lentils can replace brown lentils.
  • A teaspoon of curry powder can replace the cumin if you want a different pot next time.

Storage

Refrigerate for up to 4 days or freeze for up to 3 months. Reheat with extra water because lentils keep absorbing liquid.

Pan and tools

  • A large pot
  • A lid
  • A wooden spoon

What to prep first

Rinse the lentils and check them for small stones. Dice the onion, carrots, and celery before the oil goes in, because the simmer is long enough that you should not be chopping halfway through.

What to serve with it

Bread, or a spoon of yogurt if you want it richer. The lentils are the protein and the starch, so a second side is optional.

Leftovers for lunch

Lentil soup keeps well for several days and often tastes better the next day. Add a splash of water when you reheat it. The lentils keep drinking liquid.

If it goes wrong

Crunchy lentils are undercooked, often because the package was old. Add broth and keep simmering until they are tender. Mushy lentils were boiled hard for too long. A gentler simmer next time keeps their shape.

Make it part of your week

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Food safety note: cooking times vary by appliance and ingredient size. Use a food thermometer where the method gives a temperature, and refrigerate leftovers within two hours.

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