Heat oven to 350°F. Spray 13x9-inch pan with cooking spray. Place crackers in food-storage plastic bag. Seal bag; crush with rolling pin or meat mallet. In large bowl, break up cookie dough. Stir or knead in crushed crackers. Press dough in bottom of pan.
In food processor or blender, place cranberry sauce. Cover; process until smooth. Spread evenly in pan.
Bake 15 to 20 minutes or until puffy and set. Cool completely, about 30 minutes.
In small microwavable bowl, microwave shortening uncovered on High about 1 minute or until melted. Stir in chocolate chips. Microwave on High 30 to 60 seconds, stirring frequently, until melted. Spread over cooled bars. Refrigerate about 30 minutes or until set. For squares, cut into 6 rows by 4 rows.