Roast peppers and remove skin and seed. Fill each pepper with 1/4 of the cheese mixture, set aside. Remove filo from box and lay out flat on work surface. With melted butter and pastry brush, take one sheet of the filo at a time, paint with the butter. Fold in half, place chili in corner and roll up brushing all unbuttered surfaces with butter. Bake in 350 degree oven for 20-25 minutes.
SAUCE: Saute onion in olive oil until clear, then add tomatoes and cook another 5-10 minutes until liquid evaporated. Add salt and chopped cilantro. To serve, place sauce on plate and add chili rellenos. Serve with rice.
