Using the excess parchment lift the "Pizza" crust out of the pan. Carefully slide the cookie off the parchment onto a platter or cake board. I cracked my last crust, but put it back together like a puzzle and it was fine!
Spread a thin layer (at least ⅛" thick) of cheesecake mousse over the top of the "Pizza" crust and smooth out.
Put the remaining mousse into a pastry bag fitted with a star tip or round tip; or put the mousse into a large plastic bag with one corner cut off to enable the piping. Store mousse in the refrigerator while arranging the fruit.
Arrange the blueberries in a rectangle in the top left corner of the long side of the crust. The blueberry rectangle should be about 5-½" x 4-½ ".
Using a knife, mark 12 lines in the mousse to make 13 spaces for the stripes.
Use the raspberries to make the red stripes on the flag (I cut my raspberries in half and laid them down because they were so large, but you can leave them whole if you like.) If using strawberries, cut them into fourths and lay them horizontally across the cream to make the red stripes. (If you want to be authentic, there are 7 red stripes and 6 white.)
After the blueberries and raspberries are in place, heat the jelly and the water, over low heat, until jelly is melted.
Using a pastry brush dab the jelly mix onto the fruit, this keeps it shiny.
Now it is time to pipe the white stripes. You can pipe them straight or embellish a little, your call.
Then you can pipe little "stars" between the blueberries if you like.
And there you have it, a patriotic and yummy take on a fruit pizza!