Okay gang, the link was wrong ... the "?" after "Global" should have been a "/" - here is the correct link for the Chicken and Egg Noodle Casserole
Olive is trying to make.
Now that I have seen the recipe ... if your microwave as a defrost setting use it. If not - use low power and figure on about 8-minutes per pound. You'll want to check it every 4-5 minutes and separate the pieces as they come loose from each other. Since your going to par-boil them first anyway - getting cooked a little on the outside isn't going to be a problem.
As for the soup - the way it is used I wouldn't worry. But, you could add about 1/2 milk to stretch it out.