1. In a sauce pan, mix cream, wine,onions, lemon juice, lemon zest, herbs, salt and pepper simmer about 15 minutes.
2. stir in salmon and pour into a greased casserole.
3. mix breadcrumbs and cheese and sprinkle over top salmon.
4. lay pats of butter over breadcrumbs.
5. cover with foil and bake on 350 for 25 minutes.