3 dozen fresh oysters in the shell, washed 
1 medium onion, finely chopped 
1/2 cup butter, cubed 
1 package (9 ounces) fresh spinach, torn 
1 cup grated Romano cheese 
1 tablespoon lemon juice 
1/8 teaspoon pepper 
2 pounds kosher salt
1.  Shuck oysters, reserving bottom shell; set aside. In a large skillet, saute onion in butter until tender. Add spinach; cook and stir until wilted.
Remove from the heat; stir in the cheese, lemon juice and pepper. 
2.  Spread kosher salt into two ungreased 15x10x1-in. baking pans. Lightly press the oyster shells down into the salt. Place one oyster in each shell;
top each with 2-1/2 teaspoons spinach mixture. 
3.  Bake, uncovered, at 450° until oysters are plump, 6-8 minutes. Serve immediately.
TOTAL TIME: Prep: 1-1/4 hours Bake: 10 min. YIELD: 3 dozen.