Take chicken and slice the strips into cubes.  Place in a pan with about 9 oz of the salsa, cook for 4-5 minutes.  Spray baking pan with non-stick spray.  Place 1 tortilla inside the baking pan. Cover the tortilla with ½ of the chicken/salsa mixture.  Place another tortilla on top of that.  Place roughly 3 oz of salsa on top of that and spread evenly.  Cover with ½ Mexican cheese.  Heat over to 425 degrees and bake for 15 minutes.  Serve with 1 oz of salsa and 2 tablespoons of sour cream on the side of each serving.  Enjoy!