I've had this recipe for ages. I used to make it before I moved overseas. 2 things I always did differently was replace the ricotta with cottage cheese and I used a cast iron skillet as opposed to the springform pan. Goes well with nice tossed salad. Also try using wholemeal flour for pastry... I have done that and it made if very hearty and wholesome--especially if you use wholemeal pasta and stick with low fat cheeses.