Combine the first 8 ingredients, & ¾ cup of the pizza sauce in a large bowl. On a large piece of parchment paper, or silicone liner, press out the meatloaf mixture into a large rectangle.
Lay out the ham across it, followed by 1.5 cups of mozzarella cheese - leaving a 1 inch margin on the edge.
Roll the meatloaf up from the small end, pulling away the parchment paper or silicone liner as you roll - much like you would a jelly roll cake.
Press the sides together with your fingers to seal it well, along with the seam along the top. Place in a 9x13 baking dish, seam side down. Brush the remaining pizza sauce on the top. Bake in an oven preheated to 350 degrees, uncovered, for about 75 minutes.
Remove, & sprinkle an additional 0.5 cup to 1 cup of cheese on top, depending on how cheesy you like it.
Bake for an additional 15-20 minutes. Remove from the oven & let it cool about 10 minutes before slicing.