Preheat oven to 350 degrees F.
On a large, rimmed baking sheet place parchment paper and lay down 2 pie crusts, slightly overlapping each other. Press seams together and gently roll out 2 of the pie crusts into a rectangle shape.
Using a pizza cutter or knife trim away the excess crust until you are left with about a 10x16 rectangle. It is okay if yours ends up being a little larger or smaller, just be sure to make them the same size or as close to it as possible. Repeat the rolling and cutting of the dough with the remaining 2 pie crusts on a separate piece of parchment, trimming your rectangle to the same size as your first.
To the first pie crust on the sheet pan add 1 ½ cups of strawberry preserves or jam and spread out leaving a decent-size border.
Take the second piece of parchment that has the top piece of crust and gently flip it onto the top of the pie crust that has the jam on it.
Using a fork, crimp the edges shut.
Use a fork]to poke holes all over the top of the crust for venting.
Bake for about 25 minutes or until the crust is golden brown.
Once the pop-tart is baked, set it aside to cool.
Make the icing by mixing the powdered sugar and water together and then adding a few drops of pink food coloring until it is your desired shade of pink. You want this glaze to be on the thicker side and not too runny.
Spread the icing over the top leaving a border.
Immediately sprinkle with your rainbow sprinkles while the icing is still wet. Slice and serve. Enjoy!