Homemade Beef Burger

Homemade oven chips

8 ounces mozzarella cheese, cubed or one mozzarella ball

1/2 cup flour

2 egg whites

1 1/2 cups panko bread crumbs

1 teaspoon dried parsley

500 g minced beef

Salt and pepper

2 large floury potatoes, such as Maris Piper, King Edward, Desirée (about 1.6kg)

2 tbsp oil

1 tsp  salt

sea salt, to serve