Heat oven to 180C/fan 160C/gas 4. Drizzle
half the oil into a small casserole or pie dish
and rub all over, then place one steak inside.
Scatter over some of the garlic, followed by
a layer of onion and tomatoes, then a layer
of potatoes on top. Season, then repeat the
layers, finishing with the potato.
Drizzle with the remaining oil and then cover
the casserole with a tightly fitting lid or cover
the pie dish with a double layer of foil. Transfer
to the oven for 2 hrs. Remove the lid or foil, turn
the oven up to 220C/fan 200C/gas 7 and cook
for 30 mins more until the top is golden brown.
Serve with some green vegetables.