I borrowed the book "Frugal Food" by Delia Smith from the library and made this flan from it - I did change the vegies that went into it. I have however returned the book to the library without taking note of the recipe. oops! It had a very easy pastry base - I think it was 40g butter rubbed into 40g plain flour and 40 g wholemeal flour, with cold water to bind it together. probably a pinch of salt also. The vegetables (I used onion, pumpkin, sweet potato and zucchini) were cooked in a pan before layering them into the blind-baked pastry shell, and pouring over an egg mixture (sorry, can't for the life of me remember what went into the egg part!). then it was baked in the oven until done!
it really was very delicious and easy to make with ingredients I had in the fridge/cupboard.