Well, actually what I plan to do is...

I want to make a nice mushroom sauce (I can't bring myself to do the soup

)
Use frozen whole gbeans (hey I'm in Pennsylvania)
And I was going to cheat by trying some frozen onion rings that are baked and made with vidallia onions.
cook beans
add sauce kind of decorative on top like in artsy fartsy man,,,,,
then top with the hot onion rings and serve..
I want a sauce not gravy

I have white and portabella shrooms, some fat free half and half (OK I bought it cause just the name is such an oxymoron)

Onion,
butter.
just wondering if some type of subtle seasonings should be added....
Oh and I will thicken it with flour a bit.
This is for a family gathering where most of they cooking all 100 of them do is kinda microwave .. well you know. This would major home made to them