Mix panko, Parmesan, garlic powder, paprika, salt, and pepper in a shallow dish.

Place flour in one dish and whisk eggs with milk in another.

Dredge each fish fillet in flour, dip in egg mixture, then coat with Parmesan-panko mixture.

Heat olive oil or butter in a skillet over medium heat and cook fish 3–4 minutes per side until golden and cooked through.

Serve immediately with parsley garnish and lemon wedges.