Provel pasteurized processed pizza cheese, which uses cheddar, Swiss, and provolone cheeses as flavorants. The sandwich consists of sliced roast pork with broccoli rabe or spinach and provolone cheese. Cheeses other than mozzarella are also fried, including provolone, Edam, cheddar, and American. Cheese such as provolone and mozzarella is sometimes used as an ingredient. Common choices for cheese include American, cheddar, provolone, and Swiss. The ingredients are Roast Beef, Provolone, and Onions all heated and served on toasted bread. Provolone (, ) is an Italian cheese. It most closely resembles a mild provolone cheese. He genetically splices a squirrel with provolone cheese in "Cartman Joins NAMBLA". Today, cheese choices in Philadelphia eateries are virtually limited to American, Provolone, or Cheez Whiz. Provolone, provola, and provoleta are versions of the same basic cheese. Its main ingredients are pasta, fried zucchinis and provolone del Monaco (or caciocavallo). Some versions of provolone are smoked. In "provolone piccante", the distinctive piquant taste is produced with lipase (enzyme) derived from goat. The most important provolone production region today is Northwestern Italy and the city of Cremona.