Preheat oven to 350ºF.
Combine cream cheese and 2 Tbsp butter; stir in chicken and next 3 ingredients. Set aside.
Unroll crescent dough, separating into 4 rectangles; press perforations to seal. Spoon 1/4 of chicken mixture into center of each rectangle; bring corners of each rectangle together over chicken mixture, and twist gently to seal.
Brush packets with remaining 1 tablespoon of melted butter; dredge in crushed croutons and place on an ungreased baking sheet.
Bake uncovered for 20-25 minutes or until golden brown.