Unfold a sheet of puff pastry on a lightly floured surface and roll it lightly to an 11 by 11-inch square.

Using a cookie cutter, cut out circles of pastry dough.

Place the pastry circles on a sheet pan lined with parchment paper and refrigerate until ready to use.

Preheat the oven to 425 degrees F.

Using a sharp paring knife, score a 1/4-inch-wide border around each pastry circle. Prick the pastry inside the score lines with the tines of a fork and sprinkle a tablespoon of grated Parmesan on each round, staying inside the scored border.

Crumble a little goat cheese on top of the Parmesan. Add in a bit of oregano

Place a slice of tomato in the center of each tart. Brush the tomato lightly with olive oil and sprinkle with garlic salt, salt, and pepper.

Bake for 15 minutes or until the pastry is golden brown.