In a medium skillet, brown the ground beef over medium-high heat, stirring and crumbling the beef until no pink remains; drain.

Add the tomatoes to the beef; cook until heated through.

Meanwhile, unroll the pizza crust; press over the bottom and halfway up the sides of the baking dish. Sprinkle 1 cup mozzarella cheese over the crust then top with the meat mixture.

Bake uncovered for 12 minutes. Top with the remaining 1 cup mozzarella cheese and sprinkle with the Parmesan cheese.

Bake for 5 minutes, or until the crust is golden and the cheese is melted. Cut into squares and serve.