Cook onions in butter 1 to 2 minutes. Add fish and stir 2 minutes. Add pepper a nd white wine. Raise heat and boil 1 minute. Allow to cool slightly. Beat eggs, cream and seasonings. Gradually add fish mixture. Pour egg-fish mixture into p astry shell and sprinkle with cheese. Bake at 190ºC or 25 to 30 minutes. Serves 4 to 6. Recipe from "One Million Recipes CD" busted by Judy R.