Lightly dust a large cutting board with flour. Place the dough on the cutting board and roll or pat into a 16x12 inch rectangle.
Place the pepperoni in an even layer on top of the dough. Top the pepperoni with the cheese. Sprinkle the oregano on top.
Use a pizza cutter or sharp knife to slice the rectangle into 1½ inch slices along the long edge (I used the width of the pepperoni as a guide). Then, cut the dough in half along the short edge to create 16 pieces.
Roll each piece up tightly lengthwise and place seam-side down on a baking sheet.
Combine the egg with one tablespoon of water in a small bowl. Whisk until the egg and water is combined. Brush the egg wash lightly on top of each roll (you won’t use all of the egg).
Bake for 16–18 minutes, or until golden brown. Serve with marinara sauce for dipping.
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Notes
*This recipe was updated in October 2022 to reflect the preference for using a tube of pizza dough instead of a disk of pizza dough that needs to be rolled out. The tube is much easier to use.However, you can also make this recipe with a disk of store-bought pizza dough (such as the one from Trader Joe's) or even homemade pizza dough. Make sure the store-bought dough is at room temperature before rolling it out. Cold dough from the refrigerator will be difficult to roll out.