London Broil with potatoes

1 garlic clove , minced 1 teaspoon salt 3 tablespoons soy sauce 1 tablespoon ketchup 1 tablespoon vegetable oil 1/2 teaspoon ground black pepper 1/2 teaspoon[...]

1 1/2 lbs london broil beef , 1 1/2 inches thick 1 tablespoon Worcestershire sauce 2 tablespoons vegetable oil (2 turns around pan) or 2 tablespoons olive oil[...]