We were driving from South Dakota to Chicago on I-90, and did a little smart phone research for lunch at the next town (which turned out to be Worthington). One of the options that popped up was African; a place called Queen Sheba. We said, Ethiopian in rural MN?!??
So we took a chance and it was awesome. I've eaten my way throw Dupont Circle in DC and some of the Ethiopian in Chicago; it was some of the best I've had. I don't think she gets a lot of non-Ethopian traffic, as the spice level was dialed way down for us (although that could have also been attributable to the 3 kids I had with me).
It is a little hard to find, so here are some hints. The restaurant is located in the former lobby of a former hotel. The front pillars of the building are painted green, yellow, and red, and the front still reads "Hotel Thompson".
The food takes a while to arrive, but you will be glad when it does. If I was passing through, I would call ahead from the road and ask for the sampler platter.
Also: the name has changed; I lost the receipt bearing the new name and can't remember the spelling.