We visited Hotel Steiger during a long bike ride around the nearby lakes in August. It's a little tucked away, but well signposted. We sat on the garden patio to enjoy the flowers and the beautiful pastoral view. We tasted several small plates including Weisswurst, a traditional Bavarian sausage, smoked trout fillets with salad, and a cream herb soup. All delicious, followed by heavenly cakes (I had the red currant cream cake - amazing). The real standout was the excellent service we had from our waitress, who was dressed in traditional Bavarian attire. A really lovely place to stop and enjoy local foods and scenery.
The cafe and restaurant belong to a spa-hotel which appeared very nice, but we did not stay here so I will leave it to another to review the hotel itself. I highly recommend a visit to Hotel Steiger if you are in the Fuessen or Schwangau / Horn area.