Best and easiest way to make fish-hash (with cod)?!

Best and easiest way to make fish-hash (with cod)?

For breakfast I like to substitute hash browns for fish hash..
My recipe has always been
Mashed Potatoes, mixed with slivered cod fish, 1 egg, packed into little patties (about 4 inches wide and 1 inch thick), then fried in a hot frying pan with some olive oil....But it never seems to turn out correctly, what am I doing wrong?

When you've made the patties dip them in golden bread crumbs before frying. Cook them on a high heat to seal the edge and get a crispy outside. When you mash the potatoes don't add butter or milk, just a little salt and ground pepper. Make sure the fish is well drained before adding as you do not want water in the mixture.Cook for a few minutes on each side turning once. Lift out carefully with a fish slice or spatula. Olive oil is not always good for frying as it cannot get the right temperature needed without smoking. Try a good vegetable or corn oil.