This cart serves an amazing hamburger. I love in n out but I prefer this spot. During various trips…read moreto Oaxaca I have let 5 folks take a bite of my burger and they all immediately ordered their own...sometimes two!! You can get your burger with several toppings but the best is "con todo". It includes the patty, a slice of cheap ass Fudd ham grilled, American cheese or Oaxacan quesillo, lettuce, tomato, grilled or fresh onion', some pickled jalapeños, a few chunks of pineapple, Mexican Mayo and a little mustard. The hotdogs aren't that great but they have them. Mario's usually shows up after 5 or 6 near the Zocalo but they may move around. After 10 pm the line gets long with all the drunk folks needing something to soak up all that mezcal or beer. But don't worry because the cook has his technique down. They were only 35 pesos but worth twice that!!!