Bruce
Herd Master
She won't eat white potatoes, other than French Fries (AKA Belgian Fries in France because that is where they originated) occasionally. With plenty of ketchup. She doesn't eat tomatoes either so it is kinda weird that she will eat 2 foods she doesn't like when they are combined.@Bruce I'm starting to wonder if your DW eats anything at all
Try it with cream of potato instead.
She likes beef and fish. Right, the EXPENSIVE stuff!
DD1 wouldn't eat it because it contains meat, DD2 likely wouldn't eat is because she's never had it before so she knows she won't like it.
I'm not a fan of cream of mushroom soup either. My mother used to make scalloped potatoes with it. I'm not really a "Cream of" soup person but @CntryBoy777's recipe with all the ingredients separate is likely better since you don't have all the "preprocessed" stuff in it. That certainly changes the flavor and texture. If I were to make it with the specified ingredients, I think I'd slice up fresh mushrooms rather than use canned. And add another garlic clove or two, I LOVE garlic.