Slow Cooker Lentil Soup
Ingredients
- Lentils, dry100g≈ 8.25 × tablespoon
- Water474g≈ 2 × 1 cup
- Celery40g≈ 1 stalk
- Carrots61g≈ 1 medium
- Yellow Onion110g≈ 1 medium
- Sweet potatoes, orange flesh, without skin, raw110g
- Garlic, raw3g≈ 1 clove
- Oregano1g≈ 1 teaspoon dried
- Thyme1g≈ 1 teaspoon dried
- Bay Leaves0.6g≈ 1 leaf
- Salt6g≈ 1 teaspoon
- Pepper2.3g≈ 1 teaspoon
- Lemon juice, raw15g≈ 1 tablespoon
- White vinegar5g≈ tsp
- Baby Spinach30g≈ 1 cup raw
Estimated Cost
- Lentils, dry (100g)—
- Water (474g)—
- Celery (40g)$0.18
- Carrots (61g)$0.15
- Yellow Onion (110g)$0.29
- Sweet potatoes, orange flesh, without skin, raw (110g)—
- Garlic, raw (3g)$0.08
- Oregano (1g)$0.14
- Thyme (1g)$0.16
- Bay Leaves (0.6g)$0.48
- Salt (6g)$0.01
- Pepper (2.3g)$0.05
- Lemon juice, raw (15g)$0.42
- White vinegar (5g)—
- Baby Spinach (30g)$0.26
* Cost estimate based on 11 of 15 ingredients.
Prices are estimates based on Kroger grocery store data, last updated October 2026. Actual prices may vary by location and retailer.
Instructions
- 1
1. Add the rinsed dried lentils and water to your slow cooker.
- 2
2. Stir in the diced celery, carrot, onion, and sweet potato.
- 3
3. Add the minced garlic, dried oregano, dried thyme, bay leaf, salt, and pepper.
- 4
4. Cover and cook on low for 6 to 8 hours, until the lentils are fully tender.
- 5
5. If using hardy greens like kale or chard, add them with 30 minutes remaining in the cooking time.
- 6
6. For delicate greens such as spinach, stir them in at the very end and cover the pot for 5 minutes to let them soften.
- 7
7. Serve with a squeeze of lemon juice or a splash of vinegar, if desired.
Nutrition per serving
Based on 4 servings · USDA data
Nutrition calculated from USDA FoodData Central using ingredient quantities in grams.
Nutrition values are estimates based on USDA data and may vary.