The filling I use is to first cook some chopped chicken fillet, onion, capsicum & mushrooms. I then add this to a cheese sauce. Pour into the vol au vent cases (cooked). Top with some grated cheese and then bake in a moderate oven till cheese is melted & sauce is heated through - approx 20 mins. This makes a nice light lunch with a salad or small ones are great as finger food.
Cheers
Trudy