I'll be looking to take my friend and her roommates out to thank her for letting me stay with them. But I'm not rich, so Aguila y Sol or others that come to over $100 US is not really an option for me. Any suggestions? Ideally in Polanco, which is where they live, or someplace easily accessible from there. Type of cuisine isn't terribly important, just some place that they might have missed but won't break my student sized piggy bank.