Step 1: Preheat the Oven

Preheat your oven to 400°F (200°C). Line a large baking sheet with parchment paper to prevent sticking and make cleanup easier.

Step 2: Prepare the Chicken Filling

In a medium mixing bowl, combine the shredded chicken, ranch dressing, garlic powder, onion powder, and dried parsley. Toss everything together until the chicken is evenly coated. Set the mixture aside.

Step 3: Roll Out the Dough

Lightly flour a clean surface and roll out the pizza dough into a rectangle, approximately 12×14 inches. Make sure the dough is even and not too thick, as this helps it bake evenly. Transfer the dough onto the prepared baking sheet.

Step 4: Assemble the Stromboli

Spread the chicken and ranch mixture evenly over the dough, leaving a 1-inch border around the edges. Sprinkle the shredded mozzarella cheese and crumbled bacon on top of the chicken.

Step 5: Roll and Seal

Starting from one long edge, carefully roll the dough into a tight log, similar to rolling a jelly roll. Pinch the edges and ends of the dough to seal the stromboli tightly, ensuring the filling doesn’t leak during baking. Place the stromboli seam-side down on the baking sheet.

Step 6: Add the Finishing Touches

Brush the top of the stromboli with the beaten egg to create a golden crust. Sprinkle with grated Parmesan cheese and a bit more dried parsley for added flavor and presentation.

Step 7: Bake

Place the stromboli in the preheated oven and bake for 20–25 minutes, or until the crust is golden brown and crispy. Keep an eye on it to prevent over-browning.

Step 8: Rest and Serve

Remove the stromboli from the oven and let it rest for 5 minutes. This makes it easier to slice. Use a sharp knife to cut the stromboli into slices. Serve warm with ranch dressing, marinara sauce, or garlic butter for dipping.