1-Pot High Protein Lentil Soup That Will Blow Your Mind

Author: Chef Stella
Published:

Oh my gosh, you have to try this high protein lentil soup—it’s my go-to when I need something hearty, healthy, and ridiculously easy to make. I swear, the first time I whipped this up, my family couldn’t believe how much flavor was packed into one bowl. Inspired by Mediterranean spices like cumin and paprika, it’s loaded with green lentils, veggies, and even sneaky flax seeds for extra protein. And the best part? It’s ready in under an hour. I’ve been making this for years—whether it’s a busy weeknight or a cozy Sunday—and it never disappoints. Trust me, once you taste it, you’ll be hooked too.

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Table of Contents

Why You’ll Love This High Protein Lentil Soup

Listen, I know what you’re thinking—lentil soup sounds boring. But this? This is the soup that’ll make you a believer. It’s got everything: cozy comfort, crazy-good nutrition, and flavors that’ll have you licking the bowl. Plus, it’s so ridiculously easy to throw together, you’ll wonder why you ever bothered with takeout. If you love hearty soups, check out more of our recipes!

Packed with protein (even without meat!)

Between the lentils and that sneaky flax seed I toss in at the end, each bowl delivers a whopping 15 grams of plant-based protein. My gym buddy didn’t believe me until I showed her the nutrition stats—now it’s her post-workout staple. The best part? You won’t miss the meat one bit thanks to all that hearty texture from the lentils.

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Flavor that punches way above its weight

That first whiff when the cumin and paprika hit the warm olive oil? Absolute magic. I swear my kitchen smells like a Mediterranean bistro every time I make this. The tomato paste adds this deep, rich base note that makes the soup taste like it’s been simmering all day (when really it’s ready in under an hour).

Meal prep superstar

This soup gets BETTER in the fridge—the flavors meld and deepen overnight. I always make a double batch because it freezes like a dream. Just last week I pulled a container from my freezer stash, and after a quick reheat? Tasted just as amazing as day one. Pro tip: freeze it in single portions for instant lunches. For more easy dinner ideas, see our dinner category.

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High Protein Lentil Soup

1-Pot High Protein Lentil Soup That Will Blow Your Mind

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  • Author: Chef Stella
  • Prep Time: 10 minutes
  • Cook Time: 40 minutes
  • Total Time: 50 minutes
  • Yield: 6 servings 1x
  • Category: Soup
  • Method: Stovetop
  • Cuisine: Mediterranean
  • Diet: Vegetarian

Description

A hearty and nutritious high protein lentil soup packed with vegetables and flavored with cumin and paprika.


Ingredients

Scale
  • 2 tablespoons olive oil
  • 1 medium onion, diced
  • 1 medium carrot, diced
  • 23 celery stalks, diced
  • ½ teaspoon salt
  • 2 large garlic cloves, minced
  • 1 teaspoon ground cumin
  • 1 teaspoon paprika
  • 1 tablespoon tomato paste
  • 2 cans (14 oz / 400 g) crushed tomatoes
  • 1 ½ cup (300 g) green lentils
  • 4 cups (1000 ml) vegetable stock
  • 2 cups (50 g) Tuscan kale, shredded
  • 2 tablespoons flax seed
  • Salt and freshly ground black pepper to taste

Instructions

  1. Heat the olive oil in a large pot or Dutch oven. Add the onion, carrot, and celery. Cook for about 5 minutes until softened. Stir in the garlic and cook for another minute until fragrant.
  2. Add the cumin, paprika, and salt and stir well to combine.
  3. Stir in the tomato paste and cook for a minute more. Next, add the crushed tomatoes, green lentils, and vegetable stock. Bring to a boil, then reduce heat and simmer for about 30-35 minutes or until the lentils are tender.
  4. Next, stir in the shredded Tuscan kale and continue to cook for a couple more minutes until the kale has wilted.
  5. Stir in the flax seed, adjust the seasoning to taste and serve hot, sprinkled with some extra flax seed if you like.

Notes

  • Store leftovers in an airtight container in the refrigerator for up to 3 days.
  • Freeze for up to 3 months.
  • Reheat gently on the stove or in the microwave.

Nutrition

  • Serving Size: 1 bowl
  • Calories: 280
  • Sugar: 8g
  • Sodium: 450mg
  • Fat: 7g
  • Saturated Fat: 1g
  • Unsaturated Fat: 5g
  • Trans Fat: 0g
  • Carbohydrates: 40g
  • Fiber: 15g
  • Protein: 15g
  • Cholesterol: 0mg
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cookivia chef
Hi, I’m Stella!

California-based chef and mom of two, passionate about creating healthy, stress-free recipes for busy families. At Cookivia, I share quick, nourishing meals and time-saving tips to help moms bring joy back to the kitchen.

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