Set up an assembly line: combine flour in a bowl with the spices. Whisk eggs in a separate bowl and add breadcrumbs to their own bowl.
Dip a piece of fish in the flour mixture until it is coated on all sides, then dip it in the egg bowl, again coating on all sides. Finally, dip the piece of fish in the breadcrumbs and press down until it is fully coated. Transfer to a plate, then repeat the process with the remaining fish filets.
Heat oil or butter in a cast-iron or non-stick skillet over medium-high heat.
Once hot, add the fish and cook for 3-4 minutes per side until golden and flakey.
Serve with lemon juice, parsley and flakey sea salt.
