Cook pasta according to the package instructions. Drain and set aside.
Cut the log of mozzarella cheese in half. Slice half of the cheese and dice the second half. Set aside.
Making The Sauce
In a large pot combine half of the pasta sauce, diced tomatoes, eggs, diced mozzarella, 1 cup of parmesan, and 1 cup of ricotta cheese. Whisk over medium heat until the ingredients have heated.
Add diced mozzarella cheese and combine until almost melted. Add cooked ziti pasta and combine well.