Warm up the fish and potatoes per directions. I used the same skillet that I used to start the crust. I'm sure the microwave or oven would produce the same result. Place them off to the side.
Prepare a large skillet (mine doesn't need oil or spray) to start your crust. Turn the stove on to med-high, place your pizza dough into the skillet and spread it out to the sides to form a little edge. I used a flat plate to press it down and shape it. Fry the crust until the bottom is slightly browned, about 5 minutes, and slide it onto a preheated pizza stone or baking sheet. Top with the tartar sauce, then the fish and potatoes, and finally the cheese.