This series has too many plot threads laid out to spend a whole episode on Mio’s cooking, so I expect them to include a lot more other stuff too. For example, it has been two episodes now without seeing anything related to the other two heroes, so I wouldn’t be surprised to see more from them in the next episode as well. I have read the source, but they have rearranged story elements a lot up to now to help with the flow, so I honestly am not sure what might be included in the next episode.