Preheat the oven to 450 degrees F (230 degrees C).

Combine salt, oregano, garlic salt, black pepper, caraway seeds, and red pepper flakes in a small bowl.

Combine ground beef and eggs in a mixing bowl until thoroughly incorporated. Add Parmesan cheese and salt mixture; combine. Press into a 12x17-inch pan, spread out evenly.

Bake in the preheated oven until ground beef is no longer pink, about 10 minutes. Drain grease.

Set an oven rack about 6 inches from the heat source and preheat the oven’s broiler.

Sprinkle 1/3 mozzarella followed by tomato sauce in an even layer over baked ground beef. Sprinkle 1/3 mozzarella over sauce; top with slices of pepperoni. Sprinkle remaining 1/3 mozzarella over top.

Broil until mozzarella melted, bubbling, and lightly browned, 3 to 5 minutes.