I followed the recipe as written other then I used chicken broth instead of water. We thought this was very dry. It needed more mushroom soup/broth for us or cut out more of the pasta. I did only use a 12 ounce box of spaghetti instead of a pound. It also didn't have much flavor to it. We thought it needed a lot more spices. I did like the addition of worchestershire sauce in this though. I thought that gave it a unique taste.
This is so good -- and so simple! Could easily used canned mushrooms instead of the fresh... Maybe even canned chicken. Just a warning... This makes a LOT of food! :) Going in my tried and true book!
I was looking for a chicken tetrazzini recipe like my grandmother's, and this is absolutely it. EXCEPT, I made the full sauce recipe and used half the pasta because I like it goopy. Also, I used a drained, 8 oz can of mushroom pieces instead of fresh because I'm lazy. And I used chicken broth instead of water, because I had some leftover I needed to use up. Fabulous! Other than these three things, I wouldn't change a thing.