Doesn't Toadstool Cafe have burgers? Also early concept art for Windmill at Monsters shows burgers. I expect this to be different.I don’t expect much authentic German or any Scandinavian food. I’m guessing Stakehouse will be the park’s burger place and Great Hall is ribs and chicken.
It could offer German-inspired fare the same way Leaky Cauldron offers British Pub-inspired fare. No one “likes” British food either, but they made it work.