Looking for a Creamy Sage Sauce made with Bechamel

[nancyd]

I went to Super Suppers in March and got their Parmesan Chicken with Creamy Sage Sauce. I loved it, but now I am trying to recreate the sauce. I know it was made with bechamel sauce, white wine, liquid butter, sage etc... but I can't remember the exact or all of the ingredients. Does anyone have any sauce recipe similar to this? Thanks