Cook the manicotti shells according to the package directions, drain and set aside. The shells will stick together, so it is best to lay them in a single layer on a large baking sheet.
In a bowl, combine ricotta cheese, 1 1/2 Cups shredded mozzarella, 1/4 Cup of shredded parmesan, eggs, parsley, basil, oregano, nutmeg, salt and pepper. set aside.
In a 9×13″ pan, pour half of the bottle of the marinara sauce in the bottom and spread evenly.
place approximately 3 tablespoons of the cheese mixture into each manicotti shell. It is best to use a smaller spoon in order to not tear the manicotti while stuffing them.
Repeat this step until all manicotti shells have been stuffed with the cheese mixture and placed in a single layer in the 9×13″ baking dish.
Top with the remaining marinara sauce
Sprinkle with the remaining mozzarella and shredded parmesan.