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Lentil Soup

A wholesome, brightened-with-lemon lentil soup spiced with cumin and smoked paprika.

50 minutes
Serves 6
Dinner
18 min prep
28 min cook

Good to know

  • One-pot

Matched from this dish's own ingredients and timing. Browse more: one-pot dinners

Instructions

5 steps
  1. 1

    Heat olive oil in a large pot and sauté onion, carrots, and celery until softened, about 6 minutes.

  2. 2

    Add garlic, cumin, and smoked paprika and cook 1 minute until fragrant.

  3. 3

    Stir in lentils, diced tomatoes, and vegetable broth; bring to a boil.

  4. 4

    Reduce heat and simmer 30 minutes until lentils are tender.

  5. 5

    Stir in lemon juice, season with salt and pepper, and garnish with parsley before serving.

Lentil Soup — plated and served Images are for illustrative purposes only, may be inaccurate, and do not guarantee the presence or absence of specific ingredients.
Serving moment. How Lentil Soup looks plated and ready to eat — a representative photo, not a step in the recipe.

Listahan Family Score™

68/100

Works for many families

68
Allergen-friendly 90
Kid-friendly 55
Weeknight-easy 54
Budget-friendly 80
Great leftovers 87
Pantry-friendly 25

Score reflects how well this recipe fits a typical busy household. In the app, your Family Score is personalized to your household's allergens, kids, and pantry.

Nutrition

per serving

170

Calories

11 g

Protein

22 g

Carbs

6 g

Fat

Estimated per serving. Actual values depend on the brands and portions you use.

Listahan cooking guide

Chef notes & practical guide

Technique notes, ingredient swaps, serve-alongside ideas, storage guidance, and equipment for this recipe.

Cultural context

Lentil soup sits in a long line of practical bean-and-legume soups across the Mediterranean, Middle East, South Asia, and Europe, where dried lentils made a sturdy meal without needing long soaking. This version leans toward a modern North American pantry style: brown lentils, canned tomatoes, vegetable broth, cumin, smoked paprika, and lemon for a bright finish.

Listahan note

This version keeps the soup straightforward and weeknight-friendly, with the flavor built in layers before the lentils go in. The lemon at the end matters; it wakes up the earthy lentils and keeps the bowl from tasting flat.

Technique cues

  • Cook the onion, carrots, and celery until they actually soften before adding the spices. That early sweetness becomes the base of the soup.
  • Bloom the cumin and smoked paprika briefly in the oil with the garlic. One minute is enough to make them fragrant without turning the garlic bitter.
  • Add the lemon juice after the lentils are tender. If it goes in too early, the soup can taste sharp before the lentils have had time to mellow.

Kitchen flow

Parallel prep
Rinse the lentils while the onion, carrots, and celery soften, then open the tomatoes and broth before the spices go in.
Make-ahead
Cook the soup fully and chill it without the parsley; add lemon and parsley after reheating for a fresher finish.
Leftover move
Thicken a portion by simmering it uncovered, then spoon it over rice or toast with extra parsley and black pepper.
Cleanup rhythm
Use one large pot and a cutting board; wipe the pot rim before the simmer so dried tomato splatter does not bake on.

Ingredient brief

Role, handling, and swap guidance for each key ingredient.

Brown lentils

Main body

Purpose: Brown lentils hold their shape better than red lentils and give the soup a hearty, earthy texture.

Handling: Rinse them well and pick through for small stones or debris before adding them to the pot.

Adaptation: Green lentils work with a slightly firmer bite; red lentils make a softer, more broken-down soup.

Yellow onion, carrots, and celery

Aromatic base

Purpose: This trio gives the broth sweetness, depth, and a familiar soup backbone.

Handling: Dice them fairly evenly so they soften at the same pace.

Adaptation: Leek can stand in for some of the onion, and extra carrot can make the soup a little sweeter.

Garlic

Savory aromatic

Purpose: Garlic adds warmth and keeps the cumin and smoked paprika from tasting dusty.

Handling: Mince it finely and stir often once it hits the pot.

Adaptation: Garlic powder can work in a pinch; add it with the spices and use a lighter hand.

Ground cumin

Earthy spice

Purpose: Cumin reinforces the lentils' nutty flavor and gives the soup a warmer profile.

Handling: Cook it briefly in the oil before adding broth so the flavor opens up.

Adaptation: Ground coriander gives a lighter citrusy note, but it will make the soup taste less deeply earthy.

Smoked paprika

Smoke and color

Purpose: Smoked paprika adds a gentle campfire note without needing meat or a long simmer.

Handling: Keep the heat moderate when blooming it so the paprika does not scorch.

Adaptation: Sweet paprika gives color without smoke; a small pinch of chili flakes adds heat if wanted.

Lemon juice

Finishing acid

Purpose: Lemon brightens the broth and balances the tomatoes and lentils.

Handling: Stir it in at the end, then taste before adding more salt.

Adaptation: Red wine vinegar or apple cider vinegar can add brightness, though the flavor will be less fresh than lemon.

Technique notes

  • Do not skip tasting after the lemon goes in. Acid can make the soup seem less salty, so final seasoning should happen at the end.
  • If the soup gets too thick while simmering, loosen it with a splash of broth or water instead of cutting the cooking time short.
  • For a creamier texture, mash a few ladles of lentils against the side of the pot, then stir them back into the broth.

Ingredient swaps

Red lentil path
Use red lentils for a faster, softer soup; start checking around 18-20 minutes because they break down quickly.
Tomato-light version
Use half the diced tomatoes and add a little extra broth if you want the lentils and cumin to lead more than the tomato.
Smokier bowl
Add a little more smoked paprika near the end rather than doubling it at the start, where it can turn bitter.
Greens finish
Stir in chopped spinach or kale during the last few minutes for a greener, thicker soup.

Serve alongside

  • Warm pita with olive oil
  • Crusty sourdough toast
  • Cucumber and tomato salad
  • Roasted cauliflower with cumin
  • Mint iced tea
  • Sparkling water with lemon
  • Light-bodied red wine

Serving suggestions only — check pairings for your household's allergens.

Storage & reheating

  • Refrigerate in a sealed container with enough broth to keep the lentils from drying out.
  • Reheat gently on the stovetop or in the microwave, adding a splash of broth or water as the lentils thicken.
  • Freeze in flat portions, thaw overnight, and finish with fresh lemon juice and parsley after reheating.

Equipment

  • Large heavy-bottomed pot
  • Fine-mesh strainer
  • Sharp chef's knife
  • Wooden spoon

Make this household-aware

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