Did you make bechamel? You did, right? And now you have some in your fridge and you're wondering what to do with it?
You've come to the right place.
I think my favorite revelation about bechamel is that it is more or less like those "cream of" condensed soups that we ate as kids (or at least I did). I sort of stumbled upon this in one of my earlier attempts at a simple mac and cheese with mushrooms - I sauteed some mushrooms then added some bechamel and lo and behold, cream of mushroom soup!