I made a fish-in-pastry dinner recently (will post recipe later) and since my youngest daughter does not eat fish, I had to come up with something similar but none fishy for her. I decided to use my old standby, chicken to stuff with. I had enough to make two pockets and she took the other one for lunch the next day. She even said this is better than hot pockets!
1 sheet of puff pastry (store-bought)
1 cooked chicken breast (poach in water or chicken broth first)
1 sprig of green onion (cut in half lengthwise then into 1 inch lengths)
2 slices of provolone cheese
Thaw out the puff pastry if frozen. Cut in pastry in half to make two roll ups. On each half layer chicken slices, green onions and cheese. Fold up sides to form a rectangular packet and press/seal seams together. Brush top of pastry with beaten egg to make it shine, and bake in 350 degree oven for 20 minutes.