Step 1

Heat the oil in a frypan. Cook the minced beef and onion until the beef is browned and the onion is soft, remove from the heat.

Step 2

Stir in the salt, oregano, garlic powder and pepper.

Step 3

In a bowl, beat the eggs, milk and mayonnaise together, then stir into the meat mixture. Fold in the cheeses.

Step 4

Line a lightly greased 23cm pie plate with the sheet of puff pastry. Pour in the mince mixture.

Step 5

Bake uncovered at 190C for 40-45 minutes, or until it is golden and puffed in the centre.

Step 6

Rest for 5 minutes before cutting.