Oysters Rockefeller - With greens

3 lbs rock salt (or other coarse salt) 24 oysters, in the shell 1/2 lb unsalted butter 1 medium celery , finely chopped 1/2 small fennel bulb , finely chopped[...]

36 oysters, shucked (the fresher the better) 4 cups rock salt 3 tablespoons unsalted butter 2 tablespoons minced shallots 1/2 tablespoon garlic paste 1 1/2[...]

2 dozen oysters 1/4 lb butter 1 celery rib , chopped 1 medium onion , chopped 1/2 cup chopped parsley 1 box frozen chopped spinach , thawed and drained 1/4[...]