I do spinach and ricotta, it is an Annabel Karmel recipe but I've lent the recipe book to my mate so can't give quantities
I cheat and buy ready made past shells or tubes then stuff them with spinach, ricotta and mascapone cheese, cover with passata and some black pepper, oregano, sprinkle with cheese and cook.
It is lovely, the recipe is in the After School Meal Planner book.