1¼ lb - 
boneless chicken breasts
   - 
salt & pepper
3 tablespoons - 
olive oil
2  - 
leeks
2 stalks - 
celery
2 medium - 
potatoes
4 oz - 
French beans
2 cloves - 
garlic
12 fl oz - 
milk
1 oz - 
plain flour (all purpose flour)
1 pint - 
chicken stock
1 cup - 
frozen peas
2 tablespoons - 
chopped fresh parsley
1 tablespoon - 
chopped fresh thyme
1 knob - 
butter
9 oz - 
ready-made filo pastry
2 tablespoons - 
grated Parmesan cheese