Mix all ingredients to a soft pastry in a food processor.
Press into base and sides of a 24 cm quiche dish.
Fry bacon until crisp.
Remove and keep aside.
Add butter to rendered fat.
Add spinach and fry until wilted.
Spoon bacon and spinach onto base.
Sprinkle feta over spinach layer.
Beat eggs, milk, sour cream and lemon juice together.
Add Parmesan cheese and seasoning and pour onto base.
Bake in a preheated oven at 160˚C for 45 minutes.