Once it’s cool enough to handle, drain any excess moisture from the spinach mixture by pressing it between paper towels or a clean dishcloth.
In a large mixing bowl, combine the sautéed spinach, mozzarella, Parmesan, oregano, basil, salt, and pepper. Mix everything together until well combined.
Step 3: Assembling the Bread
Lightly flour your work surface and roll the dough into a rectangular shape, about 12 inches by 18 inches (30 cm by 45 cm).
Spread the spinach and cheese filling evenly across the center of the dough, leaving about 1 inch of space along the edges.
Carefully fold the sides of the dough over the filling, then roll it up tightly like a burrito or jelly roll.
Pinch the edges and ends of the dough together to seal in the filling, ensuring that none of the cheese leaks out during baking.
Place the stuffed dough seam-side down on a baking sheet lined with parchment paper. Brush the top of the dough with the egg wash (beaten egg mixed with a tablespoon of water). This will give the bread its golden, glossy crust.
Step 4: Baking the Bread
Bake the stuffed bread in the preheated oven for about 25-30 minutes, or until the bread is golden brown and crispy. The cheese inside should be melted and bubbly.
Once the bread is done, remove it from the oven and let it cool for a few minutes before slicing. This will allow the cheese to firm up slightly, making it easier to cut.
