Mix all the filling ingredients together except for the butter. Stir until just barely combined
Place ingredients in a 9x13 pan. Dot with butter.
Roll the pie dough out into a rectangle about 1/4" thick. Cut out stars (or desired shapes with a cookie cutter) or leave it whole. Place on top of the crisp
Whisk together the egg and heavy cream. Brush in a thin even layer over the pie dough on top. Sprinkle the sugar over top of the crust
Bake the crisp at 350 for about 1 hour or until bubbling in the middle and golden on top (this may take slightly longer if you have frozen berries). Let it sit for ~30 minutes and serve