Rub together flour and margarine to form breadcrumb-like consistency. Add pinch of salt and water and stir with a table knife to bring dough together.

Once chilled roll out flour onto greaseproof paper, slightly larger than the dish you are using. Keeping the dough on the paper, line the dish, trim leaving excess around the rim to allow for shrinkage and refrigerate for at least 10 minutes.

Whisk the eggs and season. Add milk and veggies. Pour into the cooked pastry case and put into a preheated oven at 180C for 25 minutes or until golden brown on top.