Grease 2 cookie sheets. I use Pam.
Place half of your pie crust rectangles on the cookie sheets. These will be your "bottoms".
Fill a quart sized Ziploc bag with the peanut butter filling. Fill another quart sized bag with prickly pear jelly.
Move the mixture to one corner. The jelly might need a little kneading to break it up a bit and make it more smooth.
Cut a small hole in one of the corners of each bag (you can make it bigger if needed, but start small).
On the "bottom" rectangles, squeeze thin strips of prickly pear jelly and peanut butter filling, leaving ~1/4-1/2 inch of room from the edge. Rotating prickly pear jelly and peanut butter filling in lines.
Brush beaten egg around the edges.
Poke holes in the remaining "top" rectangle pie crusts left with a fork.
Layer the "top" piece over the filling.
Using a fork, crimp the edges together to ensure the filling is sealed in.
Brush tops with remaining egg wash.
Bake for 12-15 minutes.