In addition to the places listed below, Restaurante Los Cofradías, at the corner of 5a Avenida and 6a Calle (tel. 502/7756-1647), is a good option for local food in a pleasant setting; their second-floor corner location offers a view of the activity below.
There are a host of stalls set up on the main plaza serving grilled meats with fresh tortillas and other Guatemalan fast food. The food here is hearty and very inexpensive, but only those with well-adapted digestive tracts should partake.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.