So, I tried this tonight and my husband and I really enjoyed it and we agreed that this was definitely a keeper! I like sauces so I added cornstarch to it to thicken it up so that it wasn't so thin. I didn't have Shitake mushrooms, so I used Creminis instead and I used turkey cutlets because I didn't have chicken breasts.
I didn't follow the recipe exactly, but I did use it as a base for what I ended up serving. Regardless, this was delicious and I would definitely make this again.