It is not so simple finding an old-fashioned tuna casserole recipe. My usual place to find recipes doesn't quite cut it for tuna casserole. No sorry, Taste site, that and unusual ingredients is my only complaint.
I have two old-fashioned recipes, apart from our favourite, but I saw them not so long ago, then forgot where. So today I got out an old, perhaps early 80s PWMU cookbook and there were two nice sounding ones there that don't use cheese. One had white sauce, curry and potatoes instead of pasta. So that is what we had. It was very nice. A little like shepherd's pie.