Boil the Potatoes: Add the diced potatoes to a pot of boiling water and cook until they are soft and easily mashable. Drain and transfer to a bowl.
Prepare the Filling: Mash the potatoes slightly, then mix in the chopped green onions, green peas, salt, and black pepper. Stir well.
Add the Cheese: While the mixture is still warm, fold in the grated mozzarella cheese until evenly combined.
Assemble the Wraps: Place a tortilla on a flat surface and spread half of the potato mixture evenly over one side. Fold the tortilla in half to form a wrap. Repeat with the second tortilla.
Cook the Wraps: Heat a non-stick pan over medium heat. Place the wraps in the pan and cook for 2–3 minutes per side, until golden brown and crispy.
Serve Hot: Slice the wraps into halves or quarters and enjoy while warm!