Hasenpfeffer is a traditional German stew made from marinated rabbit or hare.
The king character in this short is a caricature of the late Charles Laughton, an English actor renowned for portraying monarchs and rulers in film throughout the 1930s and 1940s.
Yosemite Sam takes a break from his usual gunslinging duties for a stint as the King's cook.
At about 1:15, the name of one of the dishes includes "kreplach", a traditional Jewish dish.