Panera Bread 197 Boston Post Rd W, Marlborough, MA01752 Panera Bread is a moderately-priced cafe specializing in bread, pastries, coffee and sandwiches. It is open for…More breakfast, lunch and dinner. Customers can simply buy bread or pastries, or have a full meal. Eat-in and take-out are available. Among the offerings are sandwiches on fresh-baked bread, salads and soups. With locations nationwide, the Marlborough outpost is located in the RK Plaza on Boston Post Road West.