Wide rice noodles are available on the ethnic-foods aisle at most major supermarkets and at Asian grocers. If you can't find them, any rice noodle or even spaghetti will work in this dish. You can also use ground sirloin, if you can't find pork.
Cowboy Caviar starts with a spicy base of black-eyed peas, tomatoes, corn, and avocado. Scoop it up with tortilla chips for an appetizer, or add cabbage and it becomes a coleslaw.