Interesting question. I'm afraid I don't have a straight answer. The period would be land between the end of the Muromachi Period and the End of the Azuchi Momoyama Period. This was when trade with the Portuguese brought many new and exotic foods to Japan, like Pumpkins, potatoes, tempura, and a personal favorite, the Castella. However these are still new and expensive foods, unlikely to be eaten by the majority of Japanese people. The period also saw a massive surge in popularity of Tea Ceremonies among peasants, and with it the associated Kaiseki food. There was also the Chaya which was a place for travelers and workers to sit down and take a small break. These Chaya generally sold tea and sweets, but there also places that specialized in providing a full meal, called Ryouri Chaya, some of which eventually became Ryoutei, a type of high class restaurant that still operate to this day.