INGREDIENTS
1
Onion, grated (approx 150g/5oz), large
1 tsp
Parsley, Fresh
1
White potato, finely diced (approx 300g/10.5oz), large
1
Egg
1 tsp
Mustard
1
Oil spray
1 tbsp
Butter
150 g
Cheddar cheese, Sharp grated
1/4 cup
Cream or milk
1
X 320g/11.3oz sheet of puff pastry ((rolled into a 14" x 9" rectangle))