Preheat oven to 200°C. Lightly grease a fluted 3cm deep, 23cm quiche dish
Line base and sides of dish with pastry. Trim excess.
Line pastry with baking paper. Half-fill with dried beans or rice. Bake for 10 minutes.
Remove paper and beans. Bake a further 10 minutes or until golden.
Heat oil in a frying pan over medium-high heat. Add onion and bacon. Cook until bacon is starting to crisp
Sprinkle over pastry. Top with cheese.
Reduce oven temperature to 180°C. Whisk remaining ingredients and salt and pepper in a jug. Pour over bacon.
Bake for 30 to 35 minutes or until set.