Antigua Guatemala has excellent options for delicatessen stores. Many of them offer daily prepared food with very good taste and price. Some Delis also cater traditional food packed or frozen. Ask at each frontdesk what do they serve or have for the day. Grocery stores are not to big in Antigua Guatemala. You can find a lot of "Tiendas" ( very little grocerys you find on the street) but there are one or two "big" supermarkets that may help you find a little of everything. You will find Antigua Guatemala is an exiting place to be and it has just the needs you need to fulfill during your trip.