Preheat oven to 350. Grease a 9×13 dish. Cook macaroni, In salted water for 2 minutes less than instructions, or al dente. Be careful not to overcook. Drain. Place macaroni, butter, seasonings, mozzarella, milk, and 3 cups of cheddar into dish and stir. in a separate bowl, mix eggs, then stir into the mixture. Cover with greased aluminum foil and cook for 40-45 minutes. Uncover and stir, then add the last cup of cheddar. Bake uncovered for 15 more minutes. Enjoy!