1. In a bowl, combine chicken, chilies, onions, cheese and seasonings. Mix well; chill until ready to use.
2. Remove half of the pastry from refrigerator at a time. On a lightly floured board, roll to a 9-in. x 12-in. rectangle. Cut into nine small rectangles.
3. Place about 2 tablespoons of filling across the center of each rectangle.
4. Wet edges of pastry with water and roll pastry around filling. Crimp ends with a fork to seal.
5. Repeat with remaining pastry and filling. Place, seam side down, on a lightly greased cookie sheet. Refrigerate until ready to heat.
6. Bake at 425° for 20-25 minutes or until golden brown. Serve warm with salsa and guacamole.