Your Oyster Recipe of the Day: Oyster Croque Monsieur. This sandwich, a menu staple at Bentley’s Oyster Bar & Grill in London, sounds delish! The recipe takes inspiration from France’s rich, grilled ham and cheese sandwiches, but skips the jambon and comté in favor of oysters and cream sauce. Cook the oysters quickly in a buttery, creamy, English mustard and Tabasco sauce. Spread the sauce on slices of bread, add oysters and pan fry the sandwiches in more butter until golden.