What i hear from my parents (as we went when covid was around) is old orchard Beach a lot of Canadians head to the beach and a lot of the surrounding restaurants and shops have some French design and culture to them.

El tapatio is a good one in the Pennichixk square shopping center as it is run by a great owner has some amazing food shortys by the home depot is also great and Frontera is also a great choice hope this helps! 😀