Spray a 13x9-inch baking pan with nonstick cooking spray. Prepare the white cake mix according to the instructions on the back of the box using the amount of water, eggs and oil called for. Pour into the prepared pan and bake, then test the center with a toothpick for doneness.
Remove from the oven and use the back of a wooden spoon or to similar poke holes all over the cake. (the holes need to be larger don't use a fork)
Meanwhile, in a medium size mixing bowl use a mixer to whip together the sweetened condensed milk, cream cheese and vanilla. Whip for 2 minutes or until fluffy and fully blended.
To the filling add 1 cup of sweetened whipped cream OR Cool Whip. Add a few drops of food coloring, if desired to make it pink. Whip to combine.
Spread half of the whipped cream cheese filling onto the warm cake pressing gently into the holes.
Hull and cube enough strawberries to equal 2 cups and set aside the desired amount of whole berries to decorate the top.
Mix the cubed strawberries into the remaining cream cheese mixture by hand then spread on top. Place the cake into the fridge for 4 hours.
Just before serving frost with remaining whipped cream or Cool Whip and decorate as desired with grated white chocolate and the reserved whole strawberries.
Cut and serve. Store leftovers in the refrigerator for up to 3 days.