Slow Cooker Indian-Spiced Lentil and Sweet Potato Curry

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A comforting and nutritious curry made with red lentils, diced sweet potatoes, and warming Indian spices slow-cooked to a velvety texture. This indian-inspired vegan (vegan) ready in about 375 minutes pairs rinsed red lentils, medium, finely chopped onion, minced garlic cloves for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 360 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 15 min Cook: 360 min Serves 4 Indian cuisine 360 cal/serving
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Ingredients

Instructions

  1. Step 1: In a slow cooker, combine 1 cup rinsed red lentils, 1 large peeled and diced sweet potato (1/2-inch cubes), 1 finely chopped medium onion, 3 minced garlic cloves, and 1 tbsp grated ginger.
  2. Step 2: Add 14 oz canned coconut milk, 2 cups vegetable broth, 2 tbsp tomato paste, 1 tsp ground turmeric, 1 tsp ground cumin, 1 tsp ground coriander, 1 tbsp garam masala, 1/4 tsp cayenne pepper, and 1 tsp salt. Stir well to combine all ingredients.
  3. Step 3: Cover and cook on low for 6-7 hours or on high for 3-4 hours, until lentils and sweet potatoes are tender and curry is thickened.
  4. Step 4: Before serving, stir in 1/4 cup chopped fresh cilantro for brightness. Serve hot with basmati rice or warm naan bread.

Equipment for this recipe

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Frequently asked questions

How long does Slow Cooker Indian-Spiced Lentil and Sweet Potato Curry take to make?

Total time is about 375 minutes (15 min prep + 360 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Slow Cooker Indian-Spiced Lentil and Sweet Potato Curry?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep rinsed red lentils from drying out.

Can I substitute ingredients in Slow Cooker Indian-Spiced Lentil and Sweet Potato Curry?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Slow Cooker Indian-Spiced Lentil and Sweet Potato Curry for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is Slow Cooker Indian-Spiced Lentil and Sweet Potato Curry vegan?

Yes — this recipe is tagged vegan based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.