after cooking noodles put in large bowl with butter until melted.
mix all cheeses together and add to hot noodles, mix good , let cheese melt.
add 1/2 and 1/2 mix. add eggs and mix
season with salt and pepper.
pour into a oven safe dish and cook until its no longer wiggley when you move it. if you like when it has about 10-15 minutes left mix some extra mozzarella, sharp and mild cheddar together and sprinkle on top and put back into oven.