1. Arrange oysters in shells on rock salt in a baking dish. Preheat oven to 400°F.
2. Process spinach, onion, bay leaves, celery, parsley and seasonings in a food processor until smooth. In a saucepan, cook spinach mixture in butter for 5 min. Add breadcrumbs and lemon juice, mixing well.
3. Spoon the spinach mixture on top of oysters and bake at 400°F until oyster edges curl.
Recipe courtesy of Florida Department of Agriculture Bureau of Seafood and Aquaculture Marketing