Preheat oven to 425 degrees. Toss the oil and the potatoes together.
Press evenly into a 9-inch pie plate and bake for 15 - 20 minutes or until potatoes begin to brown.
Layer the cheese, meat, and onion on top of the potato crust.
In a bowl beat together the evaporated milk, eggs, salt, and pepper and pour onto the other ingredients.
Sprinkle with parsley flakes and bake 30 minutes or until lightly browned. Allow quiche to cool 5 minutes before cutting into wedges.