I make this pie for my grandson Xave. He loves it. Sometimes I add a small amount of curry powder to the meat whilst browning. That adds a bit more flavour.

Ingredients:
1 tblsp olive oil 1 brown onion, halved, finely chopped
1 carrot, peeled, finely chopped 2 celery sticks, trimmed, finely chopped
500g beef premium mince 2 tblsp plain flour
500ml (2 cups) beef stock 1 tblsp Worcestershire sauce
1 tblsp tomato paste Salt & freshly ground black pepper
4 (about 200g each) Desiree potatoes, peeled, chopped
40g butter 125ml (½ cup) milk
Melted butter, to brush