Tuna n Mushroom Quiche

This is something I learned to make in one of the cooking classes I attended and at last found time for it.. It was indeed a success...

Pastry :

150 gm cold butter
1 3/4 cup flour
2-3 tbsp ice water

Filling :

4 eggs
1 cup cream
1/2 cup milk
1/2 cup grated cheddar cheese
1 can tuna (drained and flaked)
10 button mushrooms, sliced
finely chopped coriander
salt and coarse black pepper to taste

Method :

To make the pastry, blitz butter and flour in a food processor till crumbly. Add in ice water and pulse till clumps of dough appear. Pour out dough to a floured surface and roll into a ball. Cover with cling film and refrigerate for about 30 mins.
Meanwhile, prepare a tart pan with removable base.Lightly grease it.
Remove dough from refrigerator and roll it out evenly and wide enough to cover ur pan. Carefully place on pan and cut off the excess. Prick base of pastry with a fork. Place baking paper on top of pastry and fill it with beans or rice to avoid the pastry rising.
Bake in 180C for 15 mins. Remove baking paper and beans. Bake further till golden brown. Mine took additional 10 mins.
Meanwhile, mix together eggs, cream and milk. Add grated cheddar, coriander, black pepper and some salt. Leave to rest.
Once pastry is done, remove from oven. Line with flaked tuna and sliced mushrooms evenly. Pour the filling onto the pastry shell slowly. Bake in 160C oven for 30-40 mins or till skewer inserted comes out clean.