I wonder if this is strange...but as far as I know, I don't think I've ever had Salisbury steak. I don't remember the name (apart from seeing it on, say, frozen dinner packages), and I certainly don't remember ever seeing anything like the end result of this recipe on my plate.
It seems a bit odd, in a way, because I can imagine my mother making this. She used cheap ground beef the most of any meat IIRC, and I can see Salisbury steak as being another option.
The mention of Lipton's soup above, however, does remind me of my mother using Lipton's onion soup for meatloaf.