1 (12 oz.) can corned beef
1/2 c. mayonnaise
8 rye or wheat bread slices
1 (16 oz.) can sauerkraut
8 slices processed Swiss or American cheese

Toast one side of bread. Combine corn beef and mayonnaise; spread on toasted side bread. Top with sauerkraut and cheese. Broil 3 minutes until cheese melts.