Soak green mung dal and rice separately for 7-8 hrs or overnight. Then drain water..
Put rice and dal in a blender along with ginger and green chili and salt to taste. . Blend till smooth..
Preparing chicken filling-- heat a pan with 1 tbsp oil .add chopped onion. Sauteed till light brown. Then garlic.stir for a minute. Then add tomato ,chili ,turmeric and coriander powder.mix well and stir for a minute.
Then add chicken pieces and salt to taste. Stir well to coat the chicken with spices..
Sprinkle some water..cover the pan and now keep cooking on low flame for 5-6 mins or chicken cooked through..
Then add sliced bell papers , black pepper and Chili flacks ..mix well with chicken..keep cooking for 2-3 mins ..
Check seasoning..chicken filling is ready. Keep aside.
Now heat a tawa .brush little oil.pour one laddle full dal batter centre of the tawa
Now spread batter in circular motion towards outside of the tawa.wait for a minute
Now add chicken filling one side of pesarattu ,spread cheese..now flip the opposite wing of pesarattu to close it..cut it from middle.
Fry bothside properly..place it on a serving plate..sprinkle some grated cheese over pesarattu ...