Cut pastry into 8cm (3½") squares, brush with melted butter and place 4 pieces on top of each other.
Press the pastry lightly into the cups. Pre-heat oven at 180oC (350oF). Bake for 10 to 15 minutes or until golden brown.
Heat oil in a non-stick pan on medium heat. Add lemongrass, SpicePaste© and coconut milk; stir-fry for 2 minutes.
Add meat and vegetables, stir-fry for 3 minutes or until cooked.
Spoon the cooked mixture into baked Filo cups. Garnish.