Preheat your oven to 375°F. Line a baking sheet with parchment paper; set aside.
In a small bowl, lightly whisk together the egg and water to create an egg wash; set aside. Slice each of the mozzarella sticks into four even pieces, so that you end up with 32 total mozzarella cheese pieces; set aside.
CUT AND STUFF THE DOUGH
Remove the dough from the cans and separate along the pre-cut sections, which should result in 16 triangles total between the two cans of dough. Use kitchen shears or a knife to then cut each triangle in half lengthwise, leaving you with 32 triangles total.
Place one of the cut mozzarella cheese pieces at the wide end of one dough triangle, then roll up toward the pointy end. Use your fingers to push down on the end and the sides to seal the dough. This will help stop too much of the cheese from oozing out while baking. Repeat this step until you’ve used all 32 dough triangles and all 32 pieces of mozzarella.
FORM THE TREE
Form the tree by placing the rolled dough pieces onto the prepared baking sheet. Start by placing one dough roll at the top, then two in the next row, three in the next row, and continue adding one more roll to each row until you have just four pieces left. Use those last four pieces to form the tree stump. Gently push the dough pieces together so there aren’t any big spaces between the dough.
Use a pastry brush and brush the egg wash over the entire top and sides of the dough.
Place the baking sheet in the oven and bake at 375°F for 20 to 25 minutes, just until the top is golden brown.When the dough has about 5 minutes left to finish baking, melt the butter in a microwave-safe bowl. Then whisk in the garlic powder and half of the chopped parsley.
Once you remove the baked bread from the oven, immediately brush the melted butter mixture over the entire tree, then sprinkle parmesan cheese, and finally, sprinkle the remaining chopped parsley over the tree.
Serve this immediately with a side of marinara or pesto sauce, so your guests can enjoy the warm cheesiness of this pull-apart bread.
Serving suggestions: serve with a side of marinara sauce, pesto sauce, and/or ranch.