Healthy Crockpot Spinach Lentil Soup

Highlighted under: Fresh Planning

I love making this Healthy Crockpot Spinach Lentil Soup, especially during the chilly months. The best part is that it requires minimal effort! I simply toss in the ingredients and let the slow cooker work its magic. This soup is packed with protein-rich lentils, vibrant spinach, and an array of spices that create a comforting bowl of goodness, perfect for a busy weeknight or a cozy weekend meal. Plus, it’s a nutritious dish that the whole family can enjoy together.

Fern Holloway

Created by

Fern Holloway

Last updated on 2026-01-11T15:33:35.617Z

When I first tried making lentil soup in a crockpot, I didn’t expect the results to be so flavorful. The long cooking time allowed the spices to really meld together, creating a rich and comforting broth that I couldn't get enough of. Adding fresh spinach at the end added a delightful vibrant color and nutritional boost, making it a dish I could feel good about serving.

One essential tip I’ve learned is to sauté the onions, garlic, and carrots before adding them to the crockpot. This small step really enhances the flavor of the soup, creating a depth that elevates the entire bowl. Trust me; it’s worth the extra few minutes!

Why You'll Love This Recipe

  • Nutritious and satisfying blend of lentils and spinach
  • Set it and forget it - perfect for busy days
  • Great for meal prep - leftovers taste even better!

The Power of Lentils

Lentils are the star ingredient in this soup, offering a wealth of nutrition packed into a tiny package. They are high in protein and fiber, making this soup a satisfying, filling meal. When cooking lentils, it’s important to rinse them first to remove any debris and prevent them from becoming mushy. For this recipe, green or brown lentils hold their shape well, ensuring a delightful texture in each spoonful. Whether you choose green or brown, you’ll find that they absorb flavors beautifully, especially with the spices added during cooking.

Another great aspect of lentils is their versatility in absorbing flavors from other ingredients. In this soup, the earthy tones of cumin and smoked paprika enhance the lentils, creating a rich base. If you’re looking to experiment, consider using red or yellow lentils, but watch the cooking time as these cook faster and can become quite soft. If you prefer a chunky soup, slightly undercook the lentils, retaining a bit of bite.

Spinach and Its Health Benefits

Adding spinach not only boosts the nutritional profile of this soup but also provides vibrant color and a fresh flavor. Spinach is rich in vitamins A and C, iron, and antioxidants, making it a fantastic addition to enhance both health and taste. To prevent overcooking, stir in the spinach during the last 10 minutes of cooking; it should wilt nicely while retaining its vibrant green color and nutrients. If you’re short on time, frozen spinach can be a suitable substitute, just add it in the last few minutes until heated through.

Incorporating leafy greens like spinach into soups often improves the overall texture and balances out the hearty lentils. Plus, if you want to boost the nutrient content further, you can mix in other greens such as kale or Swiss chard. Just be mindful of the cooking times, as tougher greens may need longer to soften. I love mixing in a variety of greens, which adds complexity and different flavor notes to each bowl.

Storage and Meal Prep Tips

This Healthy Crockpot Spinach Lentil Soup is a fantastic option for meal prep. It keeps well in the fridge for up to five days, and the flavors meld beautifully over time, making it taste even better the next day. When storing, I recommend letting the soup cool completely before transferring it to airtight containers. For longer storage, this soup freezes quite well; just make sure to leave some space in the container for expansion when freezing. It can be frozen for up to three months! To reheat, simply thaw in the refrigerator overnight and warm on the stove until heated through.

Additionally, consider making a double batch of this soup to maximize your effort and minimize cooking time later in the week. If you’re scaling up the recipe, be mindful that cooking times may vary slightly depending on the size of your crockpot. More ingredients may require a bit more time to cook evenly, so check for tenderness in the lentils during the last hour of cooking to ensure everything is perfectly done.

Ingredients

Gather these fresh ingredients to make your delicious soup!

Ingredients

  • 1 cup dried green or brown lentils, rinsed
  • 4 cups vegetable broth
  • 1 medium onion, diced
  • 2 cloves garlic, minced
  • 2 medium carrots, diced
  • 1 cup celery, diced
  • 1 teaspoon ground cumin
  • 1 teaspoon smoked paprika
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 4 cups fresh spinach, roughly chopped
  • 1 tablespoon lemon juice
  • Fresh parsley for garnish (optional)

Make sure to have everything prepped before starting!

Instructions

Follow these simple steps for a delicious soup!

Prep the Vegetables

In a skillet over medium heat, sauté the diced onion, minced garlic, and carrots in a drizzle of olive oil until softened, about 5 minutes.

Combine Ingredients

Transfer the sautéed vegetables to the crockpot and add the rinsed lentils, vegetable broth, celery, cumin, smoked paprika, salt, and pepper. Stir well to combine.

Cooking Time

Cover and cook on low for 6 hours or on high for 3 hours until the lentils are tender.

Add Spinach

In the last 10 minutes of cooking, stir in the chopped spinach and let it wilt. Add the lemon juice and adjust seasoning if needed.

Serve

Ladle the soup into bowls and garnish with fresh parsley if desired. Enjoy warm!

Enjoy your comforting bowl of soup!

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Pro Tips

  • For added flavor, consider incorporating other vegetables like bell peppers or zucchini. You can also top each serving with a dollop of yogurt or sour cream for creaminess.

Serving Suggestions

To elevate your bowl of soup, consider serving it alongside crusty bread or a light salad for a complete meal. A dollop of Greek yogurt on top adds creaminess and a tangy flavor that beautifully complements the heartiness of the lentils. Additionally, sprinkle some freshly grated Parmesan cheese or croutons for added texture and flavor. If you’re craving extra heat, a drizzle of hot sauce or a sprinkle of red pepper flakes can enhance the dish's warmth.

For a gourmet flair, try garnishing with a blend of fresh herbs like cilantro or dill, which can brighten the flavors of the soup. A squeeze of fresh lemon juice at serving time can also provide an extra layer of brightness, balancing the earthiness of the lentils and spices. You might find that every serving can feel like a new recipe with varying toppings!

Troubleshooting Tips

If you find your soup is too thick after cooking, simply stir in additional vegetable broth or water until it reaches your desired consistency. Conversely, if it seems too watery, you can simmer it uncovered on high for 20-30 minutes to let some of the liquid evaporate, concentrating the flavors. Always taste and adjust seasoning before serving—it’s easy to enhance with a touch more salt or spices based on your preferences.

Another common issue can be overcooked lentils, leading to a mushy texture. If your lentils are overcooked, consider turning the soup into a puree for a creamy texture, or combine it with some whole cooked lentils to regain a chunkier feel. Keep an eye on the cooking time, and remember that each slow cooker may cook a bit differently, so it’s always best to check for doneness earlier than expected!

Questions About Recipes

→ Can I freeze this soup?

Yes! This soup freezes well. Just let it cool completely before transferring it to airtight containers.

→ What type of lentils work best?

Green or brown lentils are ideal as they hold their shape well during cooking. Avoid red lentils if you want a chunkier texture.

→ Can I add meat to this soup?

Absolutely! You can add diced chicken or sausage for a heartier dish. Just cook the meat beforehand and add it to the pot.

→ How can I make this soup spicier?

Add a pinch of red pepper flakes or some diced jalapeños when you combine the ingredients for a kick of heat.

Healthy Crockpot Spinach Lentil Soup

I love making this Healthy Crockpot Spinach Lentil Soup, especially during the chilly months. The best part is that it requires minimal effort! I simply toss in the ingredients and let the slow cooker work its magic. This soup is packed with protein-rich lentils, vibrant spinach, and an array of spices that create a comforting bowl of goodness, perfect for a busy weeknight or a cozy weekend meal. Plus, it’s a nutritious dish that the whole family can enjoy together.

Prep Time15 minutes
Cooking Duration6 hours
Overall Time6 hours 15 minutes

Created by: Fern Holloway

Recipe Type: Fresh Planning

Skill Level: Easy

Final Quantity: 6 servings

What You'll Need

Ingredients

  1. 1 cup dried green or brown lentils, rinsed
  2. 4 cups vegetable broth
  3. 1 medium onion, diced
  4. 2 cloves garlic, minced
  5. 2 medium carrots, diced
  6. 1 cup celery, diced
  7. 1 teaspoon ground cumin
  8. 1 teaspoon smoked paprika
  9. 1/2 teaspoon salt
  10. 1/4 teaspoon black pepper
  11. 4 cups fresh spinach, roughly chopped
  12. 1 tablespoon lemon juice
  13. Fresh parsley for garnish (optional)

How-To Steps

Step 01

In a skillet over medium heat, sauté the diced onion, minced garlic, and carrots in a drizzle of olive oil until softened, about 5 minutes.

Step 02

Transfer the sautéed vegetables to the crockpot and add the rinsed lentils, vegetable broth, celery, cumin, smoked paprika, salt, and pepper. Stir well to combine.

Step 03

Cover and cook on low for 6 hours or on high for 3 hours until the lentils are tender.

Step 04

In the last 10 minutes of cooking, stir in the chopped spinach and let it wilt. Add the lemon juice and adjust seasoning if needed.

Step 05

Ladle the soup into bowls and garnish with fresh parsley if desired. Enjoy warm!

Extra Tips

  1. For added flavor, consider incorporating other vegetables like bell peppers or zucchini. You can also top each serving with a dollop of yogurt or sour cream for creaminess.

Nutritional Breakdown (Per Serving)

  • Calories: 220 kcal
  • Total Fat: 2g
  • Saturated Fat: 0g
  • Cholesterol: 0mg
  • Sodium: 450mg
  • Total Carbohydrates: 40g
  • Dietary Fiber: 12g
  • Sugars: 5g
  • Protein: 14g