Prepare the Garlic Butter Mixture: In a bowl, mix together the butter, grated garlic, lemon juice, Worcestershire sauce, ¼ cup of grated cheese, salt, pepper, cayenne, and chopped parsley until well combined. Set this mixture aside.
Preheat the Grill: Heat your grill to 350°F (180°C).
Grill the Oysters: Arrange the oysters on the half shell directly on the preheated grill. Let them cook until the juices in the oysters start to bubble.
Add the Butter Mixture: Once bubbling, spoon about 1 tablespoon of the garlic butter mixture over each oyster.
Top with Cheese: Sprinkle each oyster with the remaining grated cheese.
Grill until Golden: Continue grilling until the cheese is melted and turns a light golden brown.
Garnish & Serve: Remove the oysters from the grill and garnish with additional chopped parsley. Serve immediately with extra garlic butter, lemon wedges, hot sauce, and crusty bread for dipping.
