Smoky Red Lentil & Roasted Carrot Soup with Cumin-Lime Yogurt Swirl

This hearty vegetarian soup layers the earthy sweetness of sheet-pan roasted carrots and onions with smoky spices and protein-rich red lentils, all blended into a creamy slow-cooker soup. Finished with a tangy cumin-lime yogurt swirl, it’s warming, vibrant, and perfect for meal prep.

⏱️ 260 minutes
👥 4 servings
🔥 270 calories
Smoky Red Lentil & Roasted Carrot Soup with Cumin-Lime Yogurt Swirl
Ingredients
  • 4 medium carrots, peeled and cut into chunks
  • 1 large yellow onion, quartered
  • 2 tbsp olive oil
  • 1 tsp smoked paprika
  • 1 tsp ground cumin
  • 1 tsp kosher salt
  • 1 cup red lentils, rinsed
  • 3 whole garlic cloves, smashed
  • 4 cups vegetable broth
  • 0.5 cup plain Greek yogurt
  • 1 medium lime, zested and juiced
  • 0.5 tsp ground cumin (for yogurt swirl)
  • 2 tbsp fresh cilantro, chopped (optional)
  • 0.25 tsp freshly ground black pepper
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Instructions

1

Preheat oven to 400°F (200°C). Arrange carrots and onion on a sheet pan, drizzle with olive oil, sprinkle with smoked paprika, cumin, and 1/2 tsp salt. Toss to coat and roast until tender and slightly caramelized.

⏱️ 30 minutes 🌡️ 400°F
2

Transfer roasted vegetables to a slow-cooker. Add rinsed red lentils, garlic, remaining salt, and vegetable broth. Stir to combine.

⏱️ 3 minutes
3

Cover and cook on LOW for 3 hours, until lentils and carrots are very soft.

⏱️ 180 minutes
4

Using an immersion blender (or regular blender in batches), puree the soup until smooth. Adjust seasoning with salt and black pepper as needed.

⏱️ 5 minutes
5

In a small bowl, mix Greek yogurt, lime zest, lime juice, and 1/2 tsp cumin. Swirl yogurt mixture into soup before serving and garnish with cilantro, if desired.

⏱️ 2 minutes
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Nutrition Information

270
Calories
14g
Protein
43g
Carbs
6g
Fat

Per serving. Values are approximate and may vary.

Frequently Asked Questions

Yes, but red lentils cook faster and blend creamier; other lentils will need a longer slow-cooker time and may yield a chunkier texture.

No, it’s smoky and earthy but not hot; add a pinch of cayenne if you want heat.

Roasting adds depth and sweetness, but you can skip it for convenience; the flavor will be lighter.

Simply use a plant-based yogurt for the swirl or omit it entirely.

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