Wash and peel the potatoes, then cut them into thin slices. Mix the potato slices in a bowl with olive oil, salt, pepper, and parmesan.
Lay the potato slices out on the bottom of an ovenproof baking pan. Start by placing a potato slice in the center and surrounding it with other slices on top. Stand up potato slices around the edge of the pan. Bake the potato slices at 320°F (160°C) for 10 minutes in a preheated convection oven.
Break the eggs into a bowl and stir in the milk, tomato, cheddar, bacon, green onions, and seasoning. Spoon the mix on top of the potatoes and level it out.
Bake the quiche at 340°F (170°C) for 17 minutes in a convection oven.