In a large frying pan over high heat, sizzle oil, onion, and garlic until translucent. Take off heat, then mix in lamb, rice, passata, stock, currants, parsley, and marjoram. Gently fold in fetta and season generously. Transfer the delicious mixture to a 3-liter baking dish.
Lay down a sheet of filo pastry and give it a light mist of olive oil. Gently scrunch it up and layer it over the filling. Repeat this with the rest of the filo sheets to completely cover the pie, then spray the top layer with oil. Bake for 40 minutes until the pastry is beautifully golden and the filling is warmed. Let it stand for 10 minutes before serving.
Prepare the Tomato and Olive Salad by combining tomatoes, cucumber, olives, vinegar, and oil in a bowl.
Garnish pie generously with marjoram and serve with a side of salad.