Place chicken on work surface. Mix cream cheese, 1-1/2 cups shredded cheese and peppers until blended; spread onto chicken. Roll up tightly, starting at one short end of each breast. Refrigerate up to 8 hours.
Heat oven to 375ºF. Beat egg in shallow dish. Place crushed chips in separate shallow dish. Dip chicken in egg, then roll in crushed chips. Place, seam sides down, in single layer in shallow pan sprayed with cooking spray.
Bake 35 min. or until chicken is done (165ºF). Meanwhile, warm salsa.
Top chicken with remaining shredded cheese. Serve with salsa.