Hearty Lentil and Potato Soup

I first cooked this Hearty Lentil and Potato Soup on a blustery weeknight and it instantly became my go-to comfort meal. It’s a rustic, nourishing bowl that balances earthy lentils, starchy potatoes, and fragrant spices — all simmered into a thick, slurpable soup that’s both budget-friendly and crowd-pleasing. Whether you want a simple weeknight dinner, a make-ahead lunch, or a warming dish to bring to a potluck, this recipe delivers reliably.

Why you’ll love this dish

This soup checks a lot of boxes: it’s economical, naturally plant-based, and stores extremely well. The combination of green or brown lentils with diced potatoes creates a satisfying texture — the lentils add protein and body while the potatoes give it a velvety, comforting bite. Smoked paprika and cumin add warmth without heat, so it’s family-friendly but still interesting.

“Comfort in a bowl — full-flavored, filling, and exactly what I want after a long day.” — a reader who made this for family dinner

When to make it:

  • Weeknight dinners: quick hands-on time, long simmer.
  • Meal prep: keeps well in the fridge and freezes beautifully.
  • Cooler seasons: perfect for chilly days or when you want something restorative.

The cooking process explained

Step-by-step overview:

  1. Sweat aromatics (onion, carrots, celery) in olive oil to build the flavor base.
  2. Add garlic briefly so it stays bright.
  3. Stir in lentils, potatoes, canned tomatoes, and broth with spices.
  4. Simmer until lentils and potatoes are tender, about 30–40 minutes.
  5. Finish with greens (spinach or kale) if desired and season to taste.

This overview helps set expectations: active prep is mostly chopping and a few minutes at the stove, while the soup needs a gentle simmer to marry flavors and soften the legumes and tubers.

What you’ll need

  • 2 tbsp olive oil (sub: any neutral oil)
  • 1 large onion, diced
  • 3 cloves garlic, minced
  • 2 large carrots, diced
  • 2 celery stalks, diced
  • 1 1/2 cups dried green or brown lentils, rinsed (red lentils will work but cook faster and break down more)
  • 3 medium potatoes, diced (Yukon Gold or russet; waxy potatoes hold shape better)
  • 1 can (14.5 oz) diced tomatoes (use fire-roasted for extra depth)
  • 8 cups vegetable broth (for richer flavor, use low-sodium broth and adjust salt)
  • 1 tsp ground cumin
  • 1 tsp smoked paprika (or sweet paprika + small pinch of cumin if you don’t have smoked)
  • 1/2 tsp dried thyme
  • 1/2 tsp dried rosemary (crush between fingers to release oils)
  • Salt and black pepper, to taste
  • 2 cups fresh spinach or kale (optional; kale needs a minute longer)
  • Fresh parsley, for garnish

Notes: If you need more protein, stir in cooked sausage (or a plant-based alternative) at the end. For a gluten-free bowl, this recipe is already safe as written.

Directions to follow

  1. Heat 2 tablespoons olive oil in a large pot over medium heat.
  2. Add the diced onion, carrots, and celery. Cook, stirring occasionally, until softened, about 5 minutes.
  3. Add the minced garlic and cook 1 more minute until fragrant.
  4. Stir in the rinsed lentils and diced potatoes.
  5. Pour in the diced tomatoes with their juices and the 8 cups of vegetable broth.
  6. Add cumin, smoked paprika, thyme, rosemary, and a generous pinch of salt and black pepper. Stir to combine.
  7. Bring the soup to a boil, then reduce heat to low. Cover and simmer for 30–40 minutes, or until lentils and potatoes are tender.
  8. If using, stir in the spinach or kale in the last 5 minutes of cooking until wilted.
  9. Taste and adjust seasoning with more salt, pepper, or a squeeze of lemon if it needs brightness.
  10. Serve hot and garnish with chopped fresh parsley.

Hearty Lentil and Potato Soup

Best ways to enjoy it

  • Serve with crusty bread or warm naan for dipping and scooping.
  • Top bowls with a drizzle of extra virgin olive oil, a spoonful of Greek yogurt (or plain plant yogurt), or shaved Parmesan (if not vegan).
  • Pair with a simple green salad or roasted vegetables to round out the meal.
  • For a heartier bowl, add a scoop of cooked farro or barley just before serving.

Storage and reheating tips

  • Refrigerate: Cool to room temperature and store in an airtight container for up to 4–5 days.
  • Freeze: Portion into freezer-safe containers or bags and freeze for up to 3 months. Thaw overnight in the fridge before reheating.
  • Reheat: Warm gently on the stovetop over low-medium heat, stirring occasionally. Add a splash of broth or water if it seems too thick after refrigeration.
  • Food safety: Don’t leave soup at room temperature for more than 2 hours. Reheat to a full simmer (165°F / 74°C) before eating.

Pro chef tips

  • Rinse the lentils: Removes debris and any bitter dust.
  • Size matters: Chop vegetables roughly the same size so they cook evenly.
  • Toast the spices: After adding cumin and paprika, give them 30 seconds in the pot to bloom and deepen the aroma before adding liquids.
  • Timing for greens: Add spinach in the final minutes for a tender finish; kale needs a couple more minutes to lose toughness.
  • Texture control: For a creamier soup, mash a cup of the cooked potatoes and lentils against the pot with a spoon, or pulse 1–2 cups with an immersion blender.

Creative twists

  • Mediterranean: Add a splash of red wine vinegar, chopped olives, and finish with feta.
  • Indian-inspired: Use garam masala in place of thyme/rosemary and add a pinch of turmeric.
  • Smoky & meaty: Stir in chopped cooked bacon or smoked sausage toward the end.
  • Creamy: Stir in a half-cup of coconut milk or cashew cream for a richer finish.
  • Instant Pot: Sauté aromatics on the Sear function, then pressure-cook lentils and potatoes for 10–12 minutes, quick release.

Your questions answered

Q: How long does this take from start to finish?
A: Active prep is about 15–20 minutes (chopping and sautéing). Simmer time is 30–40 minutes, so plan about 50–60 minutes total.

Q: Can I use red lentils instead of green/brown?
A: Yes, but red lentils cook much faster and tend to break down into a softer, almost porridge-like texture. Reduce simmer time and watch closely.

Q: Is this soup suitable for meal prep?
A: Absolutely. It keeps well in the fridge for several days and freezes nicely. Portion into single servings for easy reheating.

Q: How can I thicken the soup?
A: Mash some of the potatoes and lentils against the pot or use an immersion blender for a creamier consistency. Cooking it a little longer with the lid off will also reduce and thicken it.

Q: Is this vegan and gluten-free?
A: As written, yes — it’s naturally vegan and gluten-free. Just be mindful of broth labels and any garnish like Parmesan.

Conclusion

If you want another take on a similar comforting bowl, check this Easy Lentil Potato Soup Recipe – Cooking LSL for a slightly different approach. For a version that mirrors the heartiness and spice balance here, see Hearty Lentil and Potato Soup – Clara quick dinners for inspiration and serving ideas.

Hearty Lentil and Potato Soup

A rustic, nourishing bowl of soup that balances earthy lentils, starchy potatoes, and fragrant spices, perfect for weeknight dinners and meal prep.
Prep Time 20 minutes
Cook Time 40 minutes
Total Time 1 hour
Course Main Course, Soup
Cuisine American, Comfort Food
Servings 6 servings
Calories 300 kcal

Ingredients
  

Base Ingredients

  • 2 tbsp olive oil or any neutral oil
  • 1 large onion, diced
  • 3 cloves garlic, minced
  • 2 large carrots, diced
  • 2 stalks celery, diced

Main Ingredients

  • 1.5 cups dried green or brown lentils, rinsed (or red lentils which cook faster)
  • 3 medium potatoes, diced (Yukon Gold or russet)
  • 1 can (14.5 oz) diced tomatoes (fire-roasted for extra depth)
  • 8 cups vegetable broth (use low-sodium for richer flavor)

Spices

  • 1 tsp ground cumin
  • 1 tsp smoked paprika (or sweet paprika + pinch of cumin)
  • 1/2 tsp dried thyme
  • 1/2 tsp dried rosemary (crushed to release oils)
  • to taste salt and black pepper

Optional Ingredients

  • 2 cups fresh spinach or kale (kale needs a minute longer)
  • fresh parsley, for garnish

Instructions
 

Preparation

  • Heat 2 tablespoons of olive oil in a large pot over medium heat.
  • Add the diced onion, carrots, and celery. Cook, stirring occasionally, until softened, about 5 minutes.
  • Add the minced garlic and cook for 1 more minute until fragrant.

Cooking

  • Stir in the rinsed lentils and diced potatoes.
  • Pour in the diced tomatoes with their juices and the vegetable broth.
  • Add cumin, smoked paprika, thyme, rosemary, and salt and pepper. Stir to combine.
  • Bring the soup to a boil, then reduce heat to low. Cover and simmer for 30–40 minutes, or until lentils and potatoes are tender.
  • If using, stir in the spinach or kale in the last 5 minutes of cooking until wilted.
  • Taste and adjust seasoning with more salt, pepper, or a squeeze of lemon if it needs brightness.
  • Serve hot and garnish with chopped fresh parsley.

Notes

For extra protein, stir in cooked sausage (or a plant-based alternative) at the end. Gluten-free as written.
Keyword easy recipe, healthy soup, Hearty Soup, Lentil Soup, vegetarian soup

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