Kuba is a czech barley and mushroom casserole--a peasant dish that's traditionally served on Christmas Eve. In fact, when Julie and I went to the Unitarian Congregation in Prague on Christmas Eve, they served kuba and beer! The ingredients are barley, dried or fresh mushrooms, onion, garlic, marjoram, butter, salt, and pepper.
I thought the wheat berries in our pantry were barley, so the photo is actually wheat berry kuba...oops! Still tastes good!