Word of warning ... you have to drive through some tough neighborhoods to get there, so we've only gone during the day. The food, however, is totally worth it. Their specialty, the cemita, is a sesame seed bun topped with avocado, meat, chipotles and amazing cheese. Tim got his with steak and I ended up finishing half of it. Why? I ordered a steak taco along with an arabe taco, which turned out to by too spicy for me when topped with their chipotle sauce. He took my spicy taco in exchange. The green sauce is soooo yummy. I'm not sure how they make it so creamy, but I'm a sucker for cilantro and doused almost all of my eats with this stuff. I could eat it on my cheerios and would buy it by the gallon, if they would only sell it to me. This place always hits the spot.
Next, we were off to the Lincoln Park Zoo, where it was so hot that the polar bear kept swimming in the same circle in the shade. If I was a polar bear with four inches of blubber who evolved to live in a place where it's not 400 degrees, I'd be doing the same thing too.