Tomato and Lentil Soup

Slow Cooker Tomato and Lentil Soup

Look no further than this delicious Slow Cooker Tomato and Lentil Soup if you’re in the mood for a warm, hearty, and nourishing meal that practically prepares itself. This soup is not only simple to make but also a comfort food favorite for many because it is full of the goodness of tomatoes, lentils, and aromatic spices.

Slow Cooker Tomato and Lentil Soup

Recipe by GeeDeeCourse: SoupsCuisine: BritishDifficulty: Easy


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A simple and heart-warming vegetarian soup made from Tomatoes and Lentils, which can be Red, Yellow or Brown.


  • 2 tbsp Sunflower Oil

  • 1 Onion

  • 1 Garlic Clove

  • 2 Celery Sticks

  • 2 Carrots

  • 1 tsp Ground Cumin

  • 1 tsp Ground Coriander

  • 175 grams Lentils red or Yellow

  • 1 tbsp Tomato Puree

  • 2 Pints Vegetable Stock

  • 400 grams of tomatoes tinned chopped

  • Bayleaf

  • Salt + Pepper

  • Creme Fraiche to serve


  • Heat the oil in a large saucepan and add the onion and garlic.
  • Gently cook over a low heat for 4/5 minutes, stirring regularly. You are looking to just soften the onion.
  • Cut the Celery and Carrot into small bite-size pieces and add to the onion, cook for a further 5 minutes, stirring at intervals. Add the Cumin and Coriander and let them cook in for a minute then add the Lentils.
  • In a small bowl mix the Tomato Puree with a little of the stock and pour into the pan, mix well and add the remaining stock, Tomatoes and Bayleaf.
  • Bring all the mixture to the boil and now transfer everything to your slow cooker. Cook on a low setting for around 4 hours.
  • Once cooked remove the bay leaf and transfer the soup to a food blender and blend until nice and smooth.
  • Alternatively, if you have A Hand Blender, that would be so much easier, just blend the soup until nice and smooth, this will save transferring from pot to blender and back again to reheat
  • If you need to season your soup now is the time.
  • Serve with a nice spoonful of Creme Fraiche and fresh crusty bread.


Q: Could I substitute canned lentils for dried ones?

While canned lentils will save you time, dried lentils work best for this recipe.

Q: Is it possible to cook the soup on high heat rather than low heat?

For the best flavor and texture, cooking should be done at a low temperature. Lentils that are cooked for a long time may become tough.

Q: The leftovers can they be frozen?

Absolutely! Store the soup in airtight containers after allowing it to cool. When ready to enjoy, reheat.

Q: Can I use water in place of the broth?

Although using broth deepens the flavor, water can be substituted if necessary. To suit, adjust the seasonings.

Q: Why is this soup so nutritious?

Protein, fiber, vitamins, and minerals are all present in lentils and tomatoes, which promotes overall health.

Also Read: Mary Berry Celeriac Soup Recipe


Enjoy the comforting flavors of Slow Cooker Tomato and Lentil Soup, a filling dish that’s ideal for chilly days or whenever you’re in the mood for a healthy meal. This soup will undoubtedly become a staple in your kitchen due to its ease of preparation and fantastic flavor.