Hearty. Yum. San be served open-face or as a sandwich.
Slice the sausages into 1/4" pieces, and brown on a medium-heat skillet.
Top sausage bits with saurkraut and turn until evenly mixed. Cover and let simmer for about 10 minutes.
Spread mustard on kaiser rolls. Using a slotted spoon, top each slice with the sausage and kraut.
Sprinkle caraway seed and top with thinly sliced cheese. Microwave for 15-30 seconds, until cheese is melted. Serve Hot.