The cost of my room included the buffet breakfast, but some rates don't. Be sure you find out when you book. The buffet breakfast in the bright, sunny morning room on the level above the lobby has enough choices for just about anyone to find a breakfast. There are areas of American and European-style foods, and also Japanese. Coffee (very good), tea, cooked cereals, and eggs to order are brought to your table.
I developed a taste for cold Soba noodles for breakfast, but also enjoyed the fresh yoghurts, fruits, pastries, and eggs. The breakfast meats were more in the European style than American, with the bacon being a wider than we are used to and less cooked.
Although this restaurant is very busy some mornings, the attractive, young people who staff it are very cheerful and welcoming. Several spoke excellent English. I believe many were graduates of the Hospitality University in Osaka. This is a Hilton, so Americans will find enough familiar foods on offer to be happy. I found it interesting that, as I ate using chopsticks, many Japanese people were using silverware. The vegetables on the Japanese food tables were apparently cooked frozen Bird's Eye vegetables, a treat in Japan!