Prep: Preheat your oven to 350°F. Spray a 9x9-inch baking dish with non-stick cooking spray.
Base Layer: Pour about ½ cup of sauce into the bottom of the dish and spread it evenly.
First Layer: Place 2 lasagna sheets on the sauce, leaving a little room between them (they will expand as they hydrate). Top with a thin layer of sauce, a generous handful of mozzarella, and a portion of your pizza meats.
Repeat: Add 2 more lasagna sheets. Repeat the sauce, cheese, and meat layers.
Final Layer: Top with the last 2 sheets. Cover with the remaining sauce, cheese, and the rest of the meat.
Moisture Check: Pour any extra sauce specifically around the edges of the noodles to ensure the dry sheets have enough liquid to cook through.
Bake: Cover tightly with foil. Bake for 35 minutes.
Crisp: Remove the foil and bake for another 15 minutes until the cheese is bubbly and starting to brown.
Set: Let the Pizzagna rest for 10 minutes before cutting. This allows the layers to firm up so you get clean, pizza-like slices.