Preheat oven to 180 degrees celcius. Grease a casserole dish.
Place fish in a casserole dish and sprinkle with fish spice and onion.
Shake cream and soup together in quick shake. Pour over fish.
Bake for 30 minutes, or until golden brown. Serve with lemon wedges.
Notes
When skinning a fish fillet, dip your fingers in salt to get a better grip on the skin. Wash your hands with lemon juice and soap to remove fish odour.