Hearty Lentil Vegetable Soup (One Pot, High Protein!)

Chef Maxime created this hearty lentil vegetable soup on a cold February evening, inspired by the vibrant colors of carrots, sweet peas, and ripe tomatoes peeking through a rich, spiced broth. One pot, minimal cleanup, and a bowl brimming with plant-based protein and fiber — this recipe quickly became a staple in his weekly rotation.

Hearty lentil vegetable soup with carrots, green peas, diced tomatoes, and fresh parsley in a rustic bowl

Hearty Lentil Vegetable Soup

One-pot hearty lentil vegetable soup packed with carrots, peas, tomatoes, potatoes, and spinach in a smoky spiced broth. Naturally vegan, gluten-free, high in protein and fiber, and even better the next day.

Ingredients
  

  • – 2 tablespoons olive oil
  • – 1 medium yellow onion diced
  • – 3 medium carrots peeled and diced
  • – 3 celery ribs diced
  • – 4 cloves garlic minced
  • – 1 1/2 teaspoons smoked paprika
  • – 1 teaspoon ground cumin
  • – 1/2 teaspoon dried oregano
  • – 1/2 teaspoon turmeric optional
  • – 1/4 teaspoon black pepper
  • – 1 can 14 oz diced tomatoes with juices
  • – 1 lb baby potatoes diced (or 2 medium potatoes)
  • – 1 1/2 cups dry brown or green lentils rinsed
  • – 1 cup green peas fresh or frozen
  • – 6 cups low-sodium vegetable broth
  • – 2 cups water add more as needed
  • – 2 handfuls fresh baby spinach or kale
  • – Juice of 1 lemon
  • – 1 teaspoon salt or to taste
  • – 1/2 cup fresh parsley chopped (for garnish)
  • – Plain yogurt or drizzle of olive oil optional, to serve

Equipment

  • – Large soup pot or Dutch oven (6-quart)
  • Wooden spoon
  • – Chef’s knife and cutting board
  • Measuring cups and spoons
  • – Ladle

Method
 

  1. Heat olive oil in a large pot over medium heat. Add onion, carrots,
  2. and celery. Sauté for 5–6 minutes until softened.
  3. Add garlic, smoked paprika, cumin, oregano, turmeric (if using), and pepper.
  4. Stir and cook 1 minute until fragrant.
  5. Add diced tomatoes, potatoes, rinsed lentils, vegetable broth, and water.
  6. Stir well to combine.
  7. Bring to a boil, then reduce heat to low. Cover partially and simmer
  8. for 25–30 minutes, stirring occasionally, until lentils and potatoes are tender.
  9. Stir in green peas and spinach or kale. Cook 5 minutes more until greens are wilted.
  10. Squeeze in lemon juice. Taste and adjust salt and pepper as needed.
  11. If soup is too thick, add a splash of broth or water to reach desired consistency.
  12. Ladle into bowls and garnish with fresh parsley and a drizzle of olive oil
  13. or a dollop of yogurt. Serve hot with crusty bread.

Notes

– For a creamier texture, blend 1–2 cups of soup and stir back into the pot.
– Red lentils can be used for a smoother, thicker soup (reduce simmering
time to 20 minutes).
– Slow Cooker: Add all ingredients except greens and lemon. Cook LOW 8–10 hours
or HIGH 4–5 hours. Stir in greens and lemon before serving.
– Instant Pot: Add all ingredients except greens. Cook on MANUAL/HIGH 15 minutes,
quick release, then stir in greens.
– Keeps in the fridge up to 5 days; freezes well up to 3 months.
Calories: 285
Protein: 16g
Servings people: 6

What makes this lentil vegetable soup stand out is its deeply seasoned base of smoked paprika, cumin, and garlic that transforms humble pantry ingredients into bold, comforting flavor. It’s naturally vegan, gluten-free, and perfect for meal prep since it tastes even better the next day.

Summary

Hearty Lentil Vegetable Soup is a one-pot, plant-based meal loaded with brown or green lentils, sweet carrots, green peas, diced tomatoes, potatoes, and fresh greens in a smoky, spiced vegetable broth. Ready in under an hour on the stovetop — or hands-off in a slow cooker — it delivers impressive protein and fiber per serving with virtually no saturated fat. Serve it with crusty bread for the ultimate cozy dinner.

Nutrition Facts

NutrientPer Serving
Calories285 kcal
Protein16 g
Carbohydrates48 g
Fat5 g
Saturated Fat0.7 g
Fiber14 g
Sugar7 g
Sodium480 mg
Iron6 mg

Servings: 6 | Prep Time: 15 min | Cook Time: 40 min | Total Time: 55 min

Tips and Variations for Hearty Lentil Vegetable Soup

  • Best lentil choice: Brown or green lentils hold their shape best; red lentils break down and create a creamier, thicker texture — both work beautifully
  • Slow cooker method: Add all ingredients (except greens and lemon) to the crockpot and cook on LOW 8–10 hours or HIGH 4–5 hours; stir in greens at the end
  • Instant Pot method: Cook on MANUAL/HIGH pressure for 15 minutes, quick release, then stir in spinach or kale
  • Thicken the soup: Blend 1–2 cups of the cooked soup and stir back in for a creamy-chunky texture without adding any cream
  • Spice variations: Add a pinch of turmeric, curry powder, or red pepper flakes for a warming, aromatic twist
  • Boost the protein: Stir in a can of drained chickpeas or white beans along with the lentils
  • Fresh vs. frozen veggies: Frozen peas and green beans work perfectly and save prep time without sacrificing nutrition
  • Storage tips: Refrigerate for up to 5 days or freeze individual portions for up to 3 months; add a splash of broth when reheating as soup thickens overnight
  • Serving ideas: Top each bowl with a dollop of plain yogurt, a drizzle of olive oil, fresh parsley, or a squeeze of lemon juice for brightness

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