Make several squares with the puff pastry of an approximate size of 3 x 6. Try to distribute the size so that no pieces remain.
Have a baking sheet and put a foil to detach the pieces once cooked.
Above each piece you can put, at your discretion, the combination you want. Sobrasada, Frankfurter sausages on a layer of ketchup, hard eggs on disks on mayonnaise, etc.
Put the tray in the oven at 180 degrees until cooked