Cream cheese n smoked salmon or non-smoked salmon with garlic n chives. Chopped chicken in mayo. Mixed veg n cheese. Spinach, mushrooms n ricotta. Chopped aubergine sauteed with red peppers, onions n tomatoes. Chicken, mushrooms n sweetcorn in a cream sauce.
YUM that sounds good. We should all go over to Halwa's :)
I've also seen
spicy potato filling
And some people use them for deserts as well. Stuff them with cream and fruit (strawberries, for example).