Ingredients
Method
- For Instant Pot: Select SAUTE. Add olive oil, then Italian sausage. Cook until browned, drain fat. Add onion, celery, carrots, garlic. Sauté 3-5 minutes. Stir in tomato paste, Italian seasoning, red pepper flakes, salt. Cook 1 minute.
- Add 1 cup rinsed lentils and 6 cups broth. Secure lid, select MANUAL/PRESSURE COOK, HIGH pressure for 15 minutes. Natural release 10 minutes, then quick release.
- For Slow Cooker: Heat olive oil in a skillet. Brown Italian sausage, drain fat, transfer to slow cooker.
- To slow cooker, add onion, celery, carrots, garlic, tomato paste, Italian seasoning, red pepper flakes, salt, 1 cup rinsed lentils, and 6 cups broth. Stir to combine.
- Cover and cook on LOW for 6-8 hours or HIGH for 3-4 hours, until lentils are tender.
- Taste and adjust seasonings as needed. Serve hot.
Notes
- When browning the Italian sausage, ensure it's fully cooked and nicely caramelized for maximum flavor before adding other ingredients. This step builds the foundation of the soup's taste.
- If using a slow cooker, I once found the lentils were a bit too firm; it taught me the importance of ensuring the liquid level is adequate and stirring halfway through if possible to ensure even cooking.
- For storage, this soup can be refrigerated in an airtight container for up to 4 days or frozen for up to 3 months. Thaw overnight in the refrigerator and reheat gently on the stovetop or in the microwave. Nutrition information is an estimate, calculated automatically. Values vary with brands, substitutions and portion sizes.
- If using a slow cooker, I once found the lentils were a bit too firm; it taught me the importance of ensuring the liquid level is adequate and stirring halfway through if possible to ensure even cooking.
- For storage, this soup can be refrigerated in an airtight container for up to 4 days or frozen for up to 3 months. Thaw overnight in the refrigerator and reheat gently on the stovetop or in the microwave. Nutrition information is an estimate, calculated automatically. Values vary with brands, substitutions and portion sizes.
