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bowl of slow cooker lentil soup in front of slow cooker
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Slow Cooker Lentil Soup

Slow cooker lentil soup is supercharged with nutrition! Truly a prep-and-go recipe, it’s easy to throw together and make extra for hearty, filling meals throughout the week. Customize with additional protein and veggies, or spice it up even more - the choice is yours!
Course Main Course, Soup
Cuisine American
Prep Time 15 minutes
Cook Time 4 hours 15 minutes
Total Time 4 hours 30 minutes
Servings 8
Calories 191kcal

Equipment

  • Slow Cooker

Ingredients

  • 1 ½ cups dried green lentils
  • 1 cup diced yellow onion
  • 3 medium carrots peeled and chopped
  • 3 cloves garlic minced
  • 1 tablespoon herb and garlic seasoning
  • 1 teaspoon smoked paprika
  • 1 pinch red pepper flakes
  • 1 teaspoon salt
  • 15 oz can crushed tomatoes
  • 3 cups chicken or vegetable broth
  • 2 cups fresh spinach for later
  • 1 tablespoon olive oil for later

Instructions

  • Add all ingredients, except spinach and olive oil, to slow cooker
  • Cover and cook on low for 6-8 hours or high for 3-4 hours until lentils are softened
  • Stir in spinach and olive oil and heat through for additional 15 minutes
  • Serve garnished with chopped herbs, shaved parmesan, a dollop of Greek yogurt, or as desired

Notes

  • Prep a freezer meal by adding all ingredients (except spinach and oil) to a freezer-safe bag and lay flat in the freezer. Thoroughly thaw in the fridge before cooking as directed.
  • Store leftover soup in an airtight container in the fridge for up to 4 days, or freeze in single portions for up to 3 months.
  • To reheat, add a splash of broth if needed to thin the soup. Add to the stovetop on medium heat, or the microwave, stirring in between short increments.
  • Use green or brown lentils for best results; avoid red lentils.
  • You do not need to pre-soak or pre-cook the lentils. Just rinse them and add to the slow cooker.
  • If the lentils are still too firm, cook on high for an extra 30-60 minutes and add more broth if needed to cover them fully.

Nutrition

Calories: 191kcal | Carbohydrates: 32g | Protein: 12g | Fat: 3g | Saturated Fat: 0.4g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Cholesterol: 2mg | Sodium: 714mg | Potassium: 693mg | Fiber: 14g | Sugar: 6g | Vitamin A: 4814IU | Vitamin C: 12mg | Calcium: 94mg | Iron: 5mg