Spread one side of each bread slice evenly with 1 1/2 teaspoons dressing. Place one cheese slice on dressed side of each of four bread slices; top each with 1 tablespoon sauerkraut and 2 ounces turkey.
Top each sandwich with 1 cheese slice and 1 bread slice, dressed side down. Coat the outside of the sandwich (top and bottom) with butter. Heat a large skillet over medium-high heat. Add sandwiches to pan. Place a food press on top of sandwiches; press gently to flatten sandwiches.Leave press on sandwiches while they cook. Cook 2 minutes on each side or until browned and cheese melts.