Pre-heat oven to 450F degrees and spray 13" x 18" rimmed baking sheet with baking spray.
Mix together pancake mix and collagen until evenly combined. Stir in water and mix briefly until not clumpy.
Pour batter into prepared pan and use spatula to spread to edges.
Top with cherry halves, the cream cheese cut into bits, and chocolate chips.
Bake in center rack for 11 to 12 minutes or until turning golden brown.
Allow to cool for just a minute and then cut into 8 large rectangles (1 piece per serving) or 16 rectangles (2 pieces per serving).
To freeze leftovers, allow to cool completely and store in air-tight freezer bag.