Preheat waffle maker to medium-high heat.
Prepare cake mix to package directions. Once waffle iron is hot, spray with cooking spray. Pour 2 cups (about half) of the cake batter into the waffle iron. Cook 5 minutes; carefully remove from the waffle maker.
For the cream cheese drizzle, cream together cream cheese, sugar, vanilla and salt into a bowl. Slowly whisk in milk. Set aside.
Mix together all ingredients for the red berry salad in a small bowl.
Top each waffle with a heaping spoonful of red berry salad and a drizzle of cream cheese.