PREHEAT oven to 350°F. Unroll dough on lightly greased baking sheet; firmly press seams together to form 12x4-inch rectangle.
CUT cream cheese horizontally in half with sharp knife. Place one of the cream cheese pieces on half of dough; top with 1 Tbsp. of the pesto and the peppers. Cover with remaining cream cheese piece; spread top with remaining 1 Tbsp. pesto. Brush dough with egg; fold in half to completely enclose filling. Press edges of dough firmly together to seal. Brush top with any remaining egg.
BAKE 15 to 18 min. or until lightly browned. Cool 10 min. Serve with RITZ Crackers and cut-up fresh vegetables.