Preparation

Step 1: Preheat the Oven

• Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper to prevent sticking and ensure easy cleanup.

Step 2: Cook the Steak and Veggies

• In a large skillet, heat olive oil over medium-high heat.
• Add the thinly sliced steak and cook for 3-4 minutes until browned, then remove it from the skillet and set aside.
• Using the same skillet, add the onion, green bell pepper, and mushrooms (if using). Cook for 5-7 minutes until softened.
• Season with salt, pepper, and Worcestershire sauce. Stir well, then remove from heat.

Step 3: Roll Out the Dough

• On a floured surface, roll out the pizza dough into a rectangle about 10×14 inches. This size allows enough space for filling and folding.

Step 4: Assemble the Stromboli

• Spread the cooked steak evenly down the center of the dough, leaving a 1-inch border on all sides.
• Layer the cooked veggies on top of the steak.
• Sprinkle the shredded cheese evenly over the filling, ensuring each bite is cheesy and flavorful.

Step 5: Fold and Seal

• Fold the sides of the dough over the filling, then fold the top and bottom edges over to fully enclose the stromboli.
• Carefully transfer the stromboli to the prepared baking sheet, placing it seam-side down to help it retain its shape during baking.

Step 6: Brush with Egg Wash

• Brush the top of the stromboli with the beaten egg to give it a beautiful, golden, and shiny crust.
• Sprinkle with sesame seeds if desired for added flavor and texture.

Step 7: Bake

• Bake for 20-25 minutes, or until the stromboli is golden brown and the cheese inside has melted and become bubbly.

Step 8: Serve

• Allow the stromboli to cool for about 5 minutes to ensure it slices cleanly. Serve with marinara or cheese sauce for dipping, enhancing the flavor profile.