So is an open-faced roast beef sandwich not a sandwich? Are you going to go against the heartland? You must be from the edge of the country!
https://faithfamilyandbeef.com/2018/11/open-faced-leftover-hot-roast-beef-sandwiches.html
And I'll throw this in just because it keeps popping up in my google ad feed and it ought to haunt the rest of you too....