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Hearty Slow Cooker Lentil Soup

A comforting and nutritious soup made with lentils and vegetables, perfect for families seeking a heart-healthy, budget-friendly meal.
Prep Time 15 minutes
Cook Time 8 hours
Total Time 8 hours 15 minutes
Course Main Course, Soup
Cuisine American, Vegetarian
Servings 6 servings
Calories 200 kcal

Ingredients
  

Main Ingredients

  • 1 cup lentils, rinsed Protein-packed base that thickens the soup.
  • 1 medium onion, diced Adds sweetness and depth of flavor.
  • 2 medium carrots, diced Provides natural sweetness and color.
  • 2 stalks celery, diced Brings freshness and subtle crunch.
  • 3 cloves garlic, minced Infuses aroma and robust flavor.
  • 6 cups vegetable or chicken broth Serves as the flavorful liquid base.
  • 1 can diced tomatoes, drained Adds acidity and enhances richness.
  • 1 teaspoon cumin Contributes warm spice notes.
  • 1 teaspoon thyme Enhances flavor.
  • to taste salt and pepper Essential for balancing flavors.
  • optional spinach or kale, fresh Boosts nutrition with added greens.

Instructions
 

Preparation

  • Rinse 1 cup of lentils under cold water until the water runs clear.
  • Dice 1 onion, 2 carrots, and 2 celery stalks into uniform pieces.
  • Minced 3 cloves of garlic.
  • Gather 6 cups of vegetable or chicken broth, and drain 1 can of diced tomatoes.
  • Wash the slow cooker.

Cooking

  • Pour the rinsed lentils into the slow cooker along with the diced vegetables.
  • Add garlic, diced tomatoes, spices, and broth.
  • Season with salt and pepper to taste and stir well.
  • Cover the slow cooker; cook on low for 6-8 hours or on high for 3-4 hours.

Serving

  • Once cooked, check lentils for tenderness without mushiness.
  • Stir in fresh spinach or kale just before serving, if desired.
  • Ladle into bowls and serve with additional seasoning or bread.

Notes

Rinse lentils thoroughly before cooking to avoid grittiness. Overcooking may lead to mushiness. Taste and adjust seasoning before serving.
Keyword Comfort Food, Healthy Soup, Lentil Soup, Meal Prep, Slow Cooker