Slow-cooker red lentil soup

Warm up with this hearty Slow-Cooker Red Lentil Soup recipe! Made with olive oil, onion, carrots, celery, garlic, ginger, cumin, coriander, and pre-cooked lentils simmered to perfection in vegetable broth. Easy, nutritious, and bursting with flavor. Perfect for cozy nights!

  • 07 Jun 2025
  • Cook time 250 min
  • Prep time 20 min
  • 4 Servings
  • 10 Ingredients

Slow-cooker red lentil soup

Slow-cooker red lentil soup is a hearty, nutritious, and convenient recipe perfect for meal prepping or cozy dinners. This soup is rich in vitamins, fiber, and plant-based protein, making it a wholesome choice for any diet. The slow cooker method allows the flavors to meld together beautifully, creating a comforting dish that requires minimal hands-on time.

Ingredients:

2 tsp olive oil
9g
1 onion
160g
2 carrots
120g
1 stalk celery
130g
2 garlic cloves
6g
1 tbsp ginger root
16g
2 tsp ground cumin
6g
2 tbsp dried coriander
30g
1.50 cups canned lentils
300g
4 cups vegetable broth
920g

Instructions:

1. Prepare the Vegetables:
- Dice the onion, carrots, and celery, ensuring they are all roughly the same size to ensure even cooking.
- Mince the garlic cloves and grate the fresh ginger root.
2. Sauté the Aromatics:
- In a skillet over medium heat, add the olive oil.
- Once the oil is hot, add the diced onion, carrots, and celery. Sauté for about 5-6 minutes, or until the vegetables are softened.
- Add the minced garlic and grated ginger to the skillet, and sauté for an additional 1-2 minutes, until fragrant.
3. Assemble the Soup in the Slow Cooker:
- Transfer the sautéed vegetables to your slow cooker.
- Add the ground cumin, dried coriander, canned red lentils, and vegetable broth to the slow cooker.
4. Cook the Soup:
- Set your slow cooker to the low setting and cook for 6-8 hours. Alternatively, you can cook on the high setting for 3-4 hours.
- Throughout the cooking process, the lentils and vegetables will become tender and the flavors will meld together.
5. Finishing Touches:
- Once the soup is cooked, taste and adjust seasoning as necessary. You may want to add salt and pepper to taste.
- If you prefer a smoother consistency, you can use an immersion blender to purée the soup to your desired texture.
6. Serve:
- Ladle the soup into bowls and serve hot.
- Optionally, garnish with fresh cilantro, a dollop of yogurt, or a squeeze of lemon juice for added brightness.

Tips:

- For extra depth of flavor, sauté the onions, carrots, and celery in olive oil before adding them to the slow cooker.

- Using fresh ginger root instead of ground ginger can enhance the flavor complexity of the soup.

- Feel free to adjust the spices to your taste – add more cumin or coriander if you prefer a stronger flavor.

- If the soup is too thick for your liking, you can add more vegetable broth or water to reach your desired consistency.

- Garnish with fresh herbs like cilantro or parsley for an added burst of freshness.

- Add a squeeze of lemon juice before serving to brighten the flavors.

- For a creamier texture, you can blend a portion of the soup with an immersion blender.

Once cooked, the slow-cooker red lentil soup will greet you with inviting aromas and a rich, savory flavor profile. Ladle into bowls, and enjoy it as is, or with a side of crusty bread for a satisfying meal. This soup keeps well in the refrigerator for a few days and can also be a great option for freezing, making it perfect for busy weeknights or lunches on-the-go.

Nutrition Facts
Serving Size420 grams
Energy
Calories 160kcal8%
Protein
Protein 10g7%
Carbohydrates
Carbohydrates 30g9%
Fiber 9g24%
Sugar 7g7%
Fat
Fat 3.57g4%
Saturated 0.50g2%
Cholesterol 0.00mg-
Vitamins
Vitamin A 310ug34%
Choline 40mg8%
Vitamin B1 0.33mg28%
Vitamin B2 0.27mg21%
Vitamin B3 2.40mg15%
Vitamin B6 0.34mg20%
Vitamin B9 180ug45%
Vitamin B12 0.00ug0%
Vitamin C 50mg57%
Vitamin E 0.51mg3%
Vitamin K 120ug99%
Minerals
Calcium, Ca 160mg12%
Copper, Cu 0.41mg45%
Iron, Fe 7mg65%
Magnesium, Mg 100mg24%
Phosphorus, P 220mg18%
Potassium, K 960mg28%
Selenium, Se 4.71ug9%
Sodium, Na 750mg50%
Zinc, Zn 1.67mg15%
Water
Water 380g-
* Percent Daily Values are based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

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