Turn this classic quiche into a meal and serve it with bitter salad leaves tossed with sunflower seeds, pepitas, lemon juice and olive oil.
Looking for more vegetarian quiche recipes?
Pencil leeks are also called baby or tiny leeks; use thick green onions instead if you can't find them. Or use 10 trimmed asparagus spears instead. Quiche is best made on the day of serving.