Nobody is saying he shouldn't find way to make monster meat taste good, just that he should prioritize getting her better first. There are plenty of ways to do that. For example, let her eat raw meat and get healed, but then she could say she got accustomized to his cooking and the raw food...
I'm just worrying for the future children of the kind of parents in the comments lol. Either they will be rotten spoiled brats or being naive sheltered kids who grow up having zero real life skill.
I think it's better to just wait for full parts of a chapter and combined them together. There are manga which it's fine but this one got cut badly it's super annoying to read.