First, preheat oven to 350 degrees F. Line a baking sheet with a silicone liner or with parchment paper. Mist parchment (if using) with cooking spray. Place the pie crust on the baking sheet and, using a sharp knife or a pizza wheel, cut the pie crust into thin strips, then cut crosswise to make small, bite-sized squares. Separate the squares so that they don't touch as much, and bake for approx. 15 minutes or until golden brown. Cool completely.
In a large bowl, melt the CandiQuik according to package directions or until smooth. Working quickly, add in the cereal, marshmallows and pie crust pieces and toss gently to coat completely.
Working fast, drop heaping ¼ cup-sized clusters of the mixture onto foil-or silicone-lined baking sheets. Because of the CandiQuik, the mixture could harden so it's key to work as fast as possible! Allow the clusters to set before serving. Store leftovers airtight, at room temperature, for up to a week.