Peel the sausages/crush up the veggie hotdogs. Season.
Roll out the puff pastry into a large rectangle, then divide this in half, longways.
Place sausage meat along the middle of the pastry, then roll up, sticking with beaten egg.
Brush with beaten egg.
Cut into sections and bake for around 20 minutes until golden brown. The penguin likes larger sausage rolls (pictured), I went for mini ones.
Slice the potatoes, drizzle with olive oil and bake for 30-40 minutes.