Grate the potatoes and squeeze out excess water and toss in flour.
Sprinkle fish fillet with salt and pepper and top with a layer of potato mixture. Press it to secure to fish.
Heat a saute pan and pour in 1/2" of oil.
Place fillets potato side down and saute until very brown and crispy.
Turn fish and finish cooking in a 350F oven.
The thickness of the fish will determine how long it will take to cook, approximately 7 minutes per inch.