1Cook shells and drain. While hot, mix oil, vinegar, salt, garlic salt, and oregano together. Pour over the shells. Let stand for two hours, stirring occasionally. Mix in the remainder of the ingredients and refrigerate overnight. Stir well before serving. I do not substitute any of the ingredients; be sure to use the provolone cheese.
2This seems time consuming but really isn't difficult to prepare and so worth it. ENJOY!