In medium bowl, mix cooked chicken, 1/4 cup salsa and sour cream until blended.
In small bowl, mix refried beans and remaining salsa until blended.
Lay two tortillas on baking sheet lined with parchment paper.
Spread chicken mixture over both tortillas. Place second set of tortillas over chicken mixture. Spread guacamole over top tortillas. Place third set of tortillas on top and spread refried bean mixture over tortillas. Place fourth set of tortillas on top and sprinkle shredded cheese over tortillas.