Preheat your oven to 375°F (190°C).
Prepare the potato crust by peeling and grating the potatoes.
Press the grated potatoes into a greased pie dish to form the crust.
Pre-bake the crust for 15 minutes until just tender.
In a bowl, whisk together the eggs and milk until well combined.
Stir in the crumbled feta, diced tomatoes, salt, and pepper.
Pour the filling into the pre-baked potato crust.
Bake for an additional 30-35 minutes until set and golden on top.
Allow the quiche to cool slightly before slicing.
Serve warm and enjoy your Potato Crust Feta & Tomato Quiche!