Hi, u/Soap_MacLavish,

You may be interested in these posts:

• "Did Romans have street food?" with an answer by u/chitoryu12.
• "I'm sitting here eating chips. Did the people of the Roman empire have an equivalent of such snack foods?" with an answer by u/samadhii. This goes both into food generally and also street, or fast, food.
• "Did Ancient Rome have any restaurants? Places where people would sit and order food and socialize? If not, then when did restaurants become the norm?" with an answer by u/koliano.

You may also be interested in the FAQs section on Food. This includes a subsection on restaurants. The link to that can be found here.