Every prairie town has fed a crowd with beef on a bun. It is the sandwich of fundraising suppers, rodeos, and family reunions — a big roast cooked low and slow, then piled onto buns for everyone in the hall. It is roast beef at its friendliest and most generous.
The magic is in the long, gentle cooking: the beef turns so tender it practically falls apart, soaking up the savory juices it cooked in. Pile it high on a soft bun, spoon over the gravy, and add a little horseradish if you like a kick. Messy, satisfying, and wonderfully simple.

