Healthy Crockpot Spinach Lentil Soup

Name: Healthy Crockpot Spinach Lentil Soup
Prep time: 15 min
Cook time: 4 h
Total time: 4 h 15 min
Yield: 6 servings
Ingredients: 1 cup dried lentils (any variety); 4 cups vegetable broth; 2 cups fresh spinach, chopped; 1 onion, diced; 2 cloves garlic, minced; 2 carrots, diced; 2 celery stalks, diced; 1 teaspoon ground cumin; 1 teaspoon smoked paprika; Salt and pepper to taste; Juice of 1 lemon

Highlighted under: Wholesome Kitchen

I love how effortless it is to prepare this Healthy Crockpot Spinach Lentil Soup. In just a few minutes, I can toss everything into my crockpot and set it to simmer while I go about my day. The combination of lentils and fresh spinach not only brings a vibrant color to the dish but also provides numerous health benefits. This soup is hearty, nutritious, and perfect for those cozy nights when you crave something warm and comforting without all the fuss of a long cooking process.

Created by

Bethan Rowcroft

Last updated on 2026-01-11T20:07:35.582Z

When I first made this Healthy Crockpot Spinach Lentil Soup, I was amazed by the depth of flavor created with minimal effort. The combination of spices and fresh ingredients melded perfectly during the slow cooking process, resulting in a silky, satisfying soup that I couldn't stop eating. The lentils became tender while retaining their shape, making each spoonful feel hearty.

One of my favorite tips is to include a splash of lemon juice before serving. It brightens the flavors and adds a refreshing zing that perfectly complements the earthiness of the lentils and spinach. Trust me, you won't want to skip this step!

Why You'll Love This Recipe
Nutrient-rich and satisfying while being low in calories
Simple preparation with all ingredients in one pot
Great for meal prep and freezes well for later

Understanding the Ingredients

The main star of this Healthy Crockpot Spinach Lentil Soup is undoubtedly the lentils. Packed with protein and fiber, lentils not only provide a satisfying texture but also help keep you feeling full longer. When choosing your lentils, consider using green or brown varieties for their quick cooking times and mild flavors. Red lentils can also be used but may produce a creamier soup, so decide based on your desired texture.

Fresh spinach adds a vibrant color and a wealth of nutrients, including iron and potassium. To keep the spinach fresh, add it towards the end of the cooking process if you prefer a brighter taste and texture. Its wilted state offers a different flavor experience, which is why I recommend stirring in the spinach just in the last 30 minutes of cook time if you want to preserve its distinct flavor.

Cooking Techniques for Success

When using a crockpot, it’s important to layer ingredients correctly to ensure even cooking. In this recipe, start by placing the lentils at the bottom, followed by the vegetables. This layering allows the liquids above to seep down and cook the lentils properly, preventing them from burning. Additionally, be mindful of the cooking time; if you overcook the soup, the lentils can become mushy and lose their shape. Aim for that tender, yet firm texture that makes each spoonful satisfying.

You can boost the overall flavor profile of the soup by sautéing the onions and garlic in a separate pan before adding them to the crockpot. This simple step will add a depth of flavor through caramelization. If you prefer to keep it effortless, simply adding them raw works too, but expect a fresher, less rich flavor overall.

Ingredients:

Main Ingredients

1 cup dried lentils (any variety)
4 cups vegetable broth
2 cups fresh spinach, chopped
1 onion, diced
2 cloves garlic, minced
2 carrots, diced
2 celery stalks, diced
1 teaspoon ground cumin
1 teaspoon smoked paprika
Salt and pepper to taste
Juice of 1 lemon

Feel free to adjust the spices and vegetables based on your preference!

Instructions:

Prepare the Ingredients

Rinse the dried lentils under cold water and set aside. Chop all the vegetables and mince the garlic.

Combine in Crockpot

In your crockpot, add the lentils, vegetable broth, spinach, onion, garlic, carrots, celery, cumin, smoked paprika, and season with salt and pepper.

Cook

Cover the crockpot and cook on low for 4 hours or until the lentils and vegetables are tender.

Finishing Touches

Once done, stir in the lemon juice, adjust seasoning if necessary, and serve warm.

Enjoy your crunchy bread on the side!

Pro Tips

For extra flavor, try adding a bay leaf during cooking and remove it before serving. You can also customize the vegetables according to what's in season.

Make-Ahead and Storage Tips

This soup is an excellent candidate for meal prepping. Prepare a large batch and store leftovers in airtight containers in the refrigerator for up to five days. It also freezes well—just be sure to let the soup cool completely before transferring it to freezer-safe bags or containers. This makes it convenient for quick meals; simply reheat in a pot on the stove or in the microwave until heated through, about 5-7 minutes on medium heat.

If you anticipate having leftovers, consider undercooking the lentils slightly so they maintain their structure upon reheating. This will help avoid the mushy texture that can occur after freezing and thawing as the lentils naturally absorb some liquid over time.

Serving Suggestions

This Healthy Crockpot Spinach Lentil Soup can be enjoyed on its own, but I love serving it with a slice of crusty whole-grain bread for a more filling meal. A dollop of Greek yogurt or a sprinkle of feta cheese adds creaminess and a tangy flavor that complements the soup beautifully. You can also top it with fresh herbs like parsley or cilantro for a burst of freshness.

For a touch of heat, consider adding a pinch of red pepper flakes or a splash of hot sauce before serving. It’s a simple way to customize your bowl and cater to your taste preferences, making each serving uniquely yours.

Questions About Recipes

→ Can I use canned lentils instead of dried?

Yes, if using canned lentils, add them in the last hour of cooking to prevent them from getting mushy.

→ Is this soup vegan-friendly?

Absolutely! All the ingredients are plant-based, making it a perfect vegan meal.

→ How can I store leftovers?

Store any leftovers in an airtight container in the refrigerator for up to 5 days, or freeze for up to 3 months.

→ Can I modify the recipe for more spices?

Definitely! You can increase the cumin and paprika, or even add a pinch of chili powder for a kick.