Cheesy Leek and Potato Bake

Name: Cheesy Leek and Potato Bake
Prep time: 15 min
Cook time: 55 min
Total time: 1 h 10 min
Cuisine: British
Ingredients: 2 large Leeks, trimmed sliced and washed; 700g (24.5oz) of potatoes, sliced thinly; 120ml (1/2 cup) of chicken or vegetable stock; 2 cloves of garlic, crushed; 60g (2oz) of parmesan cheese, grated; 50g (1.7oz) of mozzarella cheese, grated; cooking oil spray; Salt and Black Pepper; fresh chopped parsley