Preheat the oven at 180 degrees Celsius.
Roll out the puff pastry dough on a baking paper, and brush the roll with a stirred egg.
Cut one two thirds in small triangles, and one third in rectangles.
On half of the triangles sprinkle the sesame seeds, and on the other half the poppy seeds.
The rectangles twist them in to long spirals, and sprinkle the grated cheese on top of them. Put them back on the paper again.
Place the paper on abaking sheet and place it in the middle of the oven for ten minutes. Take out your puff pastry appetizers and let them cool down before serving them.