1-Preheat grill or broiler on high. Get the heat moving so your crumb browns fast.

2-Mix all crumb ingredients well to combine. Stir breadcrumbs, parsley (optional), Parmesan, minced garlic, olive oil, and a pinch of salt until evenly mixed.

3-Sprinkle both sides of the fish with salt and pepper. Season lightly so the fish tastes flavorful but not salty.

4-Spread mustard on the top side of each fillet. Keep it on the top side only since that is what will get the crumb.

5-Press the mustard-coated side into the crumb mixture firmly so it sticks well. Press with confidence so you do not end up with crumb fallout.

6-Spray crumbed side with olive oil for extra golden crust. This helps the topping brown and crisp under the high heat.

7-Drizzle 1/2 tablespoon olive oil in a skillet and preheat on high. You want the skillet hot so the fish underside starts cooking immediately.

8-Once skillet is hot, place fillets in pan. Then immediately place under the grill about 5 inches from heat source.

9-Cook for 5 to 6 minutes, rotating as needed. You are looking for golden crumb and fish that flakes easily.

10-For oven option: bake at 220C (390F) for 10 to 12 minutes, then finish under broiler for golden crumb.

11-Serve immediately with lemon wedges. Lemon brightens the Parmesan crust and keeps the whole plate feeling fresh.