Turn your slow cooker to high and add 2 tablespoons of oil, chopped onion, minced garlic, ginger, turmeric, curry powder, cumin, salt, and red pepper flakes. Give it a stir and allow it to warm the spices while you gather the other ingredients.
Add 1 1/2 cups of rinsed red lentils, 1 can diced tomatoes and their juices, drained chickpeas, vegetable broth, and water to the slow cooker. Stir well, cover, and allow the dahl to cook for 4-5 hours on high or turn down to low and cook for 6-8 hours.
About 1/2 hour before you are ready to eat, add 4 cups of chopped kale and a can of full-fat coconut milk (or vegan cream) to the lentil and chickpea mixture, then stir well and turn the slow cooker to low for the last 30 minutes of cooking.
Once you add the kale and coconut milk to the lentil dahl, cook your choice of rice or grain according to package directions, or make my basmati rice or quinoa, or serve it with Naan or flatbread for dipping.
Add salt to taste and a dash or two of cayenne pepper to achieve the desired spice level. Serve over rice or quinoa and garnish with fresh cilantro or parsley if desired.
Notes
Add the coconut milk towards the end of cooking, and be sure to set the temperature to low once it has been added. You will have a creamier sauce if you don’t boil the coconut milk.
If you are using spinach instead of kale, add the spinach a few minutes before serving, so it wilts, but doesn't get overcooked.