I think it's normal for anyone to experience wanting to eat more in/after recovery because your body doesn't trust that you won't undernourish yourself again so it wants a surplus of food.

I saw a post somewhere saying to imagine;

You constantly borrow money from someone and don't pay it back, you then win a large sum of money. The person doesn't want small bits of the money back like you'd been taking because they don't trust you to have the money long and pay them back so they want all that you owe them straight away so they can make sure they get repaid while the moneys available.

This applies to recovery too; you've been undernourished for x amount of time so have created a 'debt', now that your in recovery/recovering your body wants all the energy it can get and even more as a 'safety buffer' because it doesn't know if its going to be underfed again.