Rinse lentils & soak for 30 minutes. Heat half oil in skillet. Add peppers & cook for 3 to 5 minutes till golden brown. Drain & cool. Add remaining oil to pan. Cook cumin till they begin to pop. Add onions & chilies & cook for 8 minutes. Stir in ginger & coriander. Drain lentils & add to the pan with water. Stir well & cover. Cook for 15 to 20 minutes til lthe liquid has evaporated. Stir in salt & pepper. Add cilantro. Cut tops off peppers & remove seeds. Stuff with the lentils & replace the tops. Stand in a baking dish. Bake at 180ºC for 15 minutes.