Beat The Egg With The Garlic Powder, Onion Powder, Paprika, Cayenne Pepper, And Salt Until Evenly Mixed. Spread The Pecan Meal Into A Shallow Dish. Dip The Walleye Fillets Into The Egg Mixture, Then Press Into The Pecan Flour. Heat The Butter And Vegetable Oil In A Large Skillet Over Medium-High Heat. Place The Walleye Fillets Into The Pan. Cook Until Golden Brown On Both Sides And The Fish Flakes Easily With A Fork, 3 To 4 Minutes Per Side.