1Heat oven to 350°F. Spray 13x9-inch pan with cooking spray. Cut cookie dough into 1/2-inch slices. Arrange slices in bottom of pan. Press dough evenly to form crust. Bake 10 to 15 minutes or until light golden brown.
2Sprinkle white M&M's™ minis chocolate candies and cashews over warm crust. In small bowl, mix caramel topping and flour until smooth; drizzle over baking chips and cashews. Sprinkle with milk chocolate baking bits; press lightly.
3Bake 15 to 20 minutes or until topping is bubbly. Cool completely, 1 hour 30 minutes to 2 hours, before cutting. For bars, cut into 6 rows by 6 rows.