The story
This is my go-to when I want the “crispy cutlet” satisfaction, but lighter. The fish is delicate, so the whole plan is simple: build a crust that browns quickly and protects the fillet, then pair it with something green and slightly bitter so the plate doesn’t feel like beige-on-beige.
Food nerd note: Panko browns quickly and stays crisp. Parmesan adds umami and helps the crust set. The butter/olive oil combo gives flavor without burning as fast as straight butter.
Why radicchio is the move
Radicchio brings a gentle bitterness that plays well with lemon and parmesan. If you don’t have it, arugula or kale works too — just add it at the end so it stays lively.
Workflow: Make the beurre blanc first and keep it warm. Then bread and sear the fish last so the crust stays crisp when the sauce hits.