I think the whole point of the Chocolate milk recovery drink is that it's an excuse to drink something you love. If you don't love chocolate milk, maybe there's something you do really like that fills the bill (or you could make it fit the bill ).

I personally love the taste of Endourox R4 , which I usually use. My family think it tastes awful, and that I have lost my mind, but after a tough ride it's delicious to me. I find it also completely brings my appetite back to normal (from ravenous) and I don't eat huge ammounts of food 2 hours after a ride.

Beer sounds good to me too - someone once suggested a shandy which is half beer half lemonade (may only taste good if you are in the UK). I find a beer after a ride makes me fall asleep almost immediately, which can be a good thing.