Cook Chicken and shred fine. Heat butter in a pan and chicken and stir for some time and mix in cream cheese, half the salsa, cilantro and red chilly powder heat through and remove from flame. Adjust taste and add salt and pepper if required. Apply cooking spray on a pan and heat tortia till brown on both sides. Cut tortias diagonally into 4 pieces. Make sandwichs on tortia pieces with chicken mix as filling. Heat over low heat for 1 minute on the pan. Serve hot with sour cream and salsa and salad greens.