yeah in addition to whatever electrolytes you need, i would get some carbs and protein in right after to help get ready for the next workout. some people try to manipulate carbohydrate availability because they think that gets you more adaptation, but even if that’s true, you have to balance that against being ready to go again for your next quality session (i.e. balance max adaptation against adequate recovery; they’re not necessarily the same thing).
When i do a shake, I do Skratch labs recovery mix, plus some creatine, plus some (unflavored) protein powder, plus a few spoonfuls of powdered peanut butter, because it is quick and delicious.
After a hard day (meaning above MLSS) it is often hard for me to eat real food immediately after, hence the shake.
After a long easy day, i’ll shove in my mouth whatever is healthy and available.
But there’s definitely no single right answer to this.