Add crushed or ground cumin seeds, fennel seeds, and chopped garlic. Saute for 30 seconds.
Add sliced onions and stir well. Cook until onions are translucent. Add potatoes and one tablespoon of water and cook for a few minutes.
Add Swiss chard stems. Stir well and cook for a few minutes. Add all the spices and salt, and stir well. Cook for 1 minute.
Add cooked red lentils and chopped swiss chard leaves and mix well to get an even mix. Let it come to a boil.
Add coconut milk and stir well. Cook for two more minutes. Taste and adjust seasoning as needed.