"Cusser’s — a fine-dining team’s homage to casual North Shore dining — is a seasonal spot that is primarily a takeout window, although diners can eat inside sibling spot Moon Bar if they choose. (The duo’s fancier sibling, Mooncusser Fish House, is upstairs.) There are two versions of the roast beef sandwich: typical three-way style or “Thoreau-style” with cheddar, pickled red onions, and Thoreau sauce. (The team’s older restaurant, located in Concord, is called 80 Thoreau.) Cusser’s will expand to a forthcoming downtown Boston food hall in winter 2020." - Terrence Doyle