Heat oven to 200C/fan 180C/gas 6.
Cut the fish into 8 pieces, then squeeze
over the lemon juice.
Line a baking sheet with baking paper,
and mix the fish seasoning, polenta and
breadcrumbs on this. Dip the fish into the
egg, then turn several times in the polenta
and breadcrumb mixture to coat. Repeat
with all the pieces of fish.
Drizzle with olive oil and bake for 15 mins,
turning halfway through cooking. Serve with
mangetout, broccoli and mashed potato.