Preheat oven to 220 degrees celsius (200 degrees if using fan-forced).
Thaw the puff pastry to room temperature for about 10 minutes.
Slice each sheet of puff pastry into 4 equal sized squares.
Use a knife to score a pastry square about 1/2 cm inside the edge (don't slice all the way through - just create an indent).
Use a fork to prick holes in the inner square (leave the outer edge unpriced).
Spread the pizza sauce over each inner square (do not spread over the leave the outer edge).
Place two pieces of salami and two slices of tomato onto each pizza square.
Top with a sprinkling of cheese.
Place on a baking tray and into the preheated oven for 20-25 minutes or until golden brown and puffed.