Good eateries are usually far and between in typical American malls. The best bets for me have been sushi restaurants, as the food is fresh and there is no fat to speak of — compared to other stalls deep frying everything, and having probably one third of fat in total.
Most of the times, mall sushi restaurants are ok, despite the sorry environment. Sometimes, they are downright awful, and other times, rarely, they are better than you would expect. Sarku Japan in CambridgeSide mall happens to be on the last category.
We enjoyed a fast dinner there, and the sushi was good; fresh and tasteful. It partially avoided the fusion syndrome, i.e. stuffing mayo to most of the entrees. The price was decent as well. The surroundings remind of any and all fast food chains, but you can always go outside to the small park with a pond — if the weather allows.
www.sarkujapan.com, 100 Cambridgeside Place (inside CambridgeSide mall), Cambridge, MA, USA, +1 617 577 7658