Add panko 1 cup at a time until desired thickness (1 cup may be enough).Make 6 cakes.
Place on a plate and let sit in the fridge for 30 minutes to form.
Mix 1/4 cup panko and some Cajun seasoning in a shallow dish or plate.Cover with panko mixture and spray pan with cooking spray and saute for 3 minutes on each side.Spray with cooking spray before flipping each cake.
Serve with your favorite sauce. I like fresh squeezed lemon juice and butter.