Is there a recipe for original chicken helper with mushroom rice that you baked? So yummy and I was sad when I could no longer find it in stores.

When products I love disappear from shelves, I feel the same way!  :~(

That said, Chicken with Rice and Mushrooms sounds similar, in that it starts with chicken pieces, uncooked rice and mushrooms/sauce.  You may want to adjust seasonings, or use the same amount of other chicken cuts - give it a try!