July 10, 2026 · 10 min

Italian Lentil and Kale Soup with Potatoes and Croutons

Lunch10 min1524 cal / serving

Warm up with a bowl of this rustic Italian-inspired soup, packed with tender lentils, earthy kale and hearty potatoes. The broth gets a boost from marinara sauce and Italian seasoning, while a bright squeeze of lemon and a shower of Parmesan finish it off perfectly.

This soup comes together in one pot, making cleanup a breeze. Serve it with crunchy croutons for texture and a side of lemon wedges for extra zing. It’s a satisfying, wholesome meal that’s sure to become a cold-weather favorite.

Recipe details

Lunch10 min1524 cal / serving2 servings

Nutrition per serving

Calories1524 kcalProtein23.5 gFat120.4 gCarbs87.3 gSugar25.3 gFiber10.2 gSodium5622 mg

Dietary labels

Gluten-free: noLactose-free: noDairy-free: no

Allergen check

Gluten / wheat: containsMilk / dairy: containsEgg: not detectedFish: not detectedShellfish: not detectedPeanut: not detectedTree nuts: not detectedSoy: not detectedSesame: not detectedMustard: not detectedCelery: not detectedSulphites: not detectedLupin: not detectedMolluscs: not detected

Values are calculated per serving from ingredient amounts and the ingredient nutrition reference per 100g. Allergen and diet labels use available ingredient metadata and name matching; always check product labels for strict diets or allergies. Some ingredient amounts or nutrition values were incomplete, so this is marked as a partial estimate.

Ingredients

Carrot3 ounce CarrotView ingredient guide
Croutons1 unit CroutonsView ingredient guide
Potatoes12 ounce PotatoesView ingredient guide
Onion1 unit OnionView ingredient guide
Kale4 ounce KaleView ingredient guide
Lemon1 unit LemonView ingredient guide
Lentils1 unit LentilsView ingredient guide
Parmesan Cheese3 tablespoon Parmesan CheeseView ingredient guide
Garlic Powder1 teaspoon Garlic PowderView ingredient guide
Marinara Sauce2.5 ounce Marinara SauceView ingredient guide
Olive Oil2 teaspoon (tsp) Olive OilView ingredient guide
Saltteaspoon (tsp) SaltView ingredient guide
Black Pepperteaspoon (tsp) Black PepperView ingredient guide

Instructions

  1. Wash and dry all produce. Halve, peel and dice the onion into ¼-inch pieces. Trim, peel and dice the carrot into ¼-inch pieces. Peel and dice the potatoes into ½-inch pieces. Remove and discard any large stems from the kale; chop the leaves into bite-size pieces. Zest the lemon and cut it into quarters.
  2. In a large pot, heat a drizzle of olive oil over medium-high heat. Add the onion, carrot and garlic powder. Cook until the vegetables begin to brown and soften, about 4-5 minutes. Add the potatoes, marinara sauce, stock concentrate, 2½ cups water, 1 teaspoon Italian seasoning and a big pinch of salt. (For 4 servings, use 5 cups water and 2 teaspoons Italian seasoning.) Bring to a boil, then cover, reduce heat to medium and simmer for 7 minutes.
  3. Uncover the pot and stir in the kale and lentils. Simmer, uncovered, until the kale is wilted and the potatoes are tender, about 5-7 minutes more. Stir in the lemon zest and a squeeze of lemon juice (a big squeeze for 4 servings). Season generously with salt and pepper. For a brothier soup, add another ¼-½ cup water and an extra pinch of salt.
  4. Divide the soup among bowls. Top with croutons and Parmesan cheese. Serve with the remaining lemon wedges on the side.

Recipe Tips

For a brothier soup, add an extra ¼-½ cup water and a pinch of salt at the end.

If you prefer a thicker soup, simmer a few minutes longer to reduce the liquid.

Feel free to swap the croutons with crusty bread for dipping.

FAQ

Can I use a different type of lentil?

Yes, but cooking times may vary. Brown or green lentils work best; red lentils will break down more and thicken the soup.

How do I store leftovers?

Store in an airtight container in the refrigerator for up to 4 days. The soup will thicken; add a splash of water when reheating.

Can I make this soup vegan?

Absolutely! Omit the Parmesan cheese or use a vegan alternative and ensure the croutons are vegan-friendly.

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