Fast answer
A no-car Monopoli arrival can be built around the station, a luggage-first arrival, Piazza Garibaldi orientation, the old-port walk, and a checked first-night dinner shortlist. The first evening works best when it stays walkable and reserved, with table availability, same-week hours, and seasonal changes confirmed close to travel.
If you only do one thing
Arrive by train, reduce luggage friction first, orient around Piazza Garibaldi and the old port, then choose from the first-night old-town dinner shortlist after confirming the booking path and current hours. The shortlist is a planning aid, not a best-restaurant ranking or a promise that walk-in tables will be available.