1Heat oven to 350° F (325° F for dark or nonstick pan). Grease or spray bottom only of 12-inch pizza pan. Make brownies as directed. Spread in pan.
2Bake 20 to 26 minutes or until toothpick inserted 2 inches from side of pan comes out clean. Cool completely.
3In medium bowl, beat cream cheese, powdered sugar and vanilla with electric mixer on high speed until smooth and creamy. Fold in whipped topping; spread on brownie. Arrange berries over cream cheese mixture. Refrigerate 1 hour. Store covered in refrigerator.