After the try with Katsudon, I had to try making Oyakodon :p I found out that Oyako means a parent and child in Japanese, as it is made of chicken and egg!
The Katsudon turned out to be a bit disappointing as I think we need to buy more expensive pork cutlets to bring out the tenderness of the meat. Iberico pork is very expensive... Maybe I should splurge on it one day!
For the Oyakodon, I followed this recipe. It turned out great and really authentic and it is so simple to make.