Bake 1/2 package of frozen fries according to directions on bag. You can deep fry if you want, but I hate doing that inside the house. The baked fries turned out just as tasty anyway.
Place cooked fries in the bottom of a round foil take away container. I found mine at Dollar Tree (3 in the pack) but you can certainly use an 8x8 square baking pan. Heat pizza sauce in a small saucepan on stove over medium heat for about 10 minutes. Pour pizza sauce on top of fries in pan. Sprinkle mozzarella cheese evenly over top of the pizza sauce. Bake at 350 for about 10 minutes or until cheese is completely melted. Let fries cool at least 10 minutes before digging in. YUM! :)