A new seafood restaurant in Boston debuted over the weekend with sandwiches galore. Lobstah on a Roll only recently took over the former Emma’s Pizza space at 537 Columbus Ave., but it’s already up and running in the South End neighborhood.

“We had a fantastic opening weekend and loved meeting all of our new neighbors,” co-owner Joe Marcus told Eater in a message. The Lobstah on a Roll team unveiled a menu of sandwiches, soups, and salads at the South End restaurant this weekend.

The menu features seafood sandwiches like lobster rolls and seared ahi, plus meat options and a hummus sandwich. The restaurant’s name is perhaps an understatement for the amount of lobster on its rolls. While there are standard-sized sandwiches fit for single-human consumption (with about six ounces of lobster meat), there are also lobster rolls in three-, four-, and five-foot sizes, with the five-footer packed full of the meat of approximately 80 one-pound lobsters. The massive sandwich, dubbed “The Monstah,” must be pre-ordered a day in advance. Lobstah on a Roll also offers lobster dinners, served with either mashed or baked potatoes, seasonal vegetables, and drawn butter.

The team is still working on a planned location for 478 Massachusetts Ave. in Arlington, as previously reported. The restaurant is under construction and could open as early as the end of November.

• Arlington’s Soon-to-Open Lobstah on a Roll Has Boston Proper Expansion Plans [EBOS]